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Condello V, Paulsson JO, Zedenius J, Näsman A, Juhlin CC. Spatial Transcriptomics in a Case of Follicular Thyroid Carcinoma Reveals Clone-Specific Dysregulation of Genes Regulating Extracellular Matrix in the Invading Front. Endocr Pathol 2024; 35:122-133. [PMID: 38280140 PMCID: PMC11176252 DOI: 10.1007/s12022-024-09798-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/12/2024] [Indexed: 01/29/2024]
Abstract
Follicular thyroid carcinoma (FTC) is recognized by its ability to invade the tumor capsule and blood vessels, although the exact molecular signals orchestrating this phenotype remain elusive. In this study, the spatial transcriptional landscape of an FTC is detailed with comparisons between the invasive front and histologically indolent central core tumor areas. The Visium spatial gene expression platform allowed us to interrogate and visualize the whole transcriptome in 2D across formalin-fixated paraffin-embedded (FFPE) tissue sections. Four different 6 × 6 mm areas of an FTC were scrutinized, including regions with capsular and vascular invasion, capsule-near area without invasion, and a central core area of the tumor. Following successful capturing and sequencing, several expressional clusters were identified with regional variation. Most notably, invasive tumor cell clusters were significantly over-expressing genes associated with pathways interacting with the extracellular matrix (ECM) remodeling and epithelial-to-mesenchymal transition (EMT). Subsets of these genes (POSTN and DPYSL3) were additionally validated using immunohistochemistry in an independent cohort of follicular thyroid tumors showing a clear gradient pattern from the core to the periphery of the tumor. Moreover, the reconstruction of the evolutionary tree identified the invasive clones as late events in follicular thyroid tumorigenesis. To our knowledge, this is one of the first 2D global transcriptional mappings of FTC using this platform to date. Invasive FTC clones develop in a stepwise fashion and display significant dysregulation of genes associated with the ECM and EMT - thus highlighting important molecular crosstalk for further investigations.
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Affiliation(s)
- Vincenzo Condello
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.
| | - Johan O Paulsson
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Trauma and Emergency Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Jan Zedenius
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Breast, Endocrine Tumors, and Sarcoma, Karolinska University Hospital, Stockholm, Sweden
| | - Anders Näsman
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - C Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.
- Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden.
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2
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Toraih EA, Hussein MH, Al Ageeli E, Ellaban M, Kattan SW, Moroz K, Fawzy MS, Kandil E. Matrix Metalloproteinase 9/microRNA-145 Ratio: Bridging Genomic and Immunological Variabilities in Thyroid Cancer. Biomedicines 2023; 11:2953. [PMID: 38001954 PMCID: PMC10669161 DOI: 10.3390/biomedicines11112953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
Matrix metalloproteinase 9 (MMP9) and microRNA-145 (miR-145) have emerged as essential biomarkers in thyroid cancer progression and metastasis. However, their combined evaluation and clinical utility as a unified prognostic marker across diverse thyroid cancer subgroups remain unexplored. We investigated the diagnostic and prognostic value of the MMP9/miR-145 ratio in thyroid cancer, hypothesizing it may overcome inter-patient heterogeneity and serve as a versatile biomarker regardless of genetic mutations or autoimmune status. MMP9 and miR-145 expressions were analyzed in 175 paired papillary thyroid cancer (PTC) and normal tissues. Plasma levels were assessed perioperatively and longitudinally over 12-18 months in 86 matched PTC patients. The associations with clinicopathological parameters and patient outcomes were evaluated. MMP9 was upregulated, and miR-145 downregulated in cancer tissues, with a median MMP9/miR-145 ratio 17.6-fold higher versus controls. The tissue ratio accurately diagnosed thyroid malignancy regardless of BRAF mutation or Hashimoto's thyroiditis status, overcoming genetic and autoimmune heterogeneity. A high preoperative circulating ratio predicted aggressive disease features, including lymph node metastasis, extrathyroidal extension, progression/relapse, and recurrence. Although the preoperative plasma ratio was elevated in patients with unfavorable outcomes, it had limited utility for post-surgical monitoring. In conclusion, the MMP9/miR-145 ratio is a promising biomarker in PTC that bridges genetic and immunological variabilities, enhancing preoperative diagnosis and prognostication across diverse patient subgroups. It accurately stratifies heterogenous cases by aggressiveness. The longitudinal trends indicate decreasing applicability for post-thyroidectomy surveillance. Further large-scale validation and protocol standardization can facilitate clinical translation of the MMP9/miR-145 ratio to guide personalized thyroid cancer management.
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Affiliation(s)
- Eman A. Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohamed H. Hussein
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia;
| | - Mohamad Ellaban
- Faculty of Medicine, Port Said University, Port Said 42526, Egypt;
| | - Shahd W. Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu 46411, Saudi Arabia;
| | - Krzysztof Moroz
- Department of Pathology and Laboratory Medicine, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Manal S. Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 91431, Saudi Arabia
| | - Emad Kandil
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
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3
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Li Z, Wei J, Chen B, Wang Y, Yang S, Wu K, Meng X. The Role of MMP-9 and MMP-9 Inhibition in Different Types of Thyroid Carcinoma. Molecules 2023; 28:molecules28093705. [PMID: 37175113 PMCID: PMC10180081 DOI: 10.3390/molecules28093705] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 05/15/2023] Open
Abstract
Matrix metalloproteinase-9 (MMP-9), one of the most investigated and studied biomarkers of the MMPs family, is a zinc-dependent proteolytic metalloenzyme whose primary function is degrading the extracellular matrix (ECM). It has been proved that MMP-9 expression elevates in multiple pathological conditions, including thyroid carcinoma. MMP-9 has a detectable higher level in malignant or metastatic thyroid tumor tissues than in normal or benign tissues and acts as an additional marker to distinguish different tumor stages because of its close correlations with clinical features, such as lymph node metastasis, TNM stage, tumor size and so on. Natural and non-natural MMP-9 inhibitors suppress its expression, block the progression of diseases, and play a role in therapy consequently. MMP-9 inhibitory molecules also assist in treating thyroid tumors by suppressing the proliferation, invasion, migration, metastasis, viability, adhesion, motility, epithelial-mesenchymal transition (EMT), and other risk factors of different thyroid cancer cells. In a word, discovering and designing MMP-9 inhibitors provide great therapeutic effects and promising clinical values in various types of thyroid carcinoma.
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Affiliation(s)
- Zhenshengnan Li
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Jia Wei
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Bowen Chen
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Yaoqi Wang
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Shuai Yang
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Kehui Wu
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Xianying Meng
- Department of Thyroid Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, China
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4
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Sayar I, Gurbuzel M. Potentially important markers in thyroid neoplasia: Claudin-1 and MMP-7. Niger J Clin Pract 2023; 26:412-416. [PMID: 37203104 DOI: 10.4103/njcp.njcp_440_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Background Thyroid carcinomas are the most common malignant endocrine tumors, and various immunohistochemical markers are tested in routine practice to reduce diagnostic differences, as well as to elucidate carcinogenesis and detect malignancy. Disruption of basement membranes and the extracellular matrix is an important step in tumor carcinogenesis and progression. The claudin and matrix metalloproteinase families are also thought to be effective in this process. Aim In this retrospective study, the comparative expression of claudin-1 and MMP-7 immunomarkers in normal tissues and thyroid neoplasia were investigated. Materials and Methods Immunohistochemical staining was performed for claudin-1 and matrix metalloproteinase 7 (MMP-7) in 112 sections, including 24 follicular adenomas, 22 follicular carcinomas, 24 medullary carcinomas, 24 papillary carcinomas, and 18 single dominant nodules from thyroid lesions. Results A significant staining difference for claudin-1 was observed in follicular carcinoma and medullary carcinoma, papillary carcinoma, and single dominant nodules compared to normal thyroid tissue. A statistically significant staining difference was observed for MMP-7 in follicular adenoma, medullary carcinoma, and papillary carcinoma compared to normal thyroid tissue. Conclusions These results indicate that claudin-1 and MMP-7 are important in the diagnosis, differential diagnosis, and carcinogenesis of follicular adenoma, follicular carcinoma, medullary carcinoma, papillary carcinoma, and single dominant nodules.
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Affiliation(s)
- I Sayar
- Department of Pathology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Türkiye
| | - M Gurbuzel
- Department of Medical Biology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Türkiye
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5
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Vázquez-Lorente H, Dunđerović DM, Tatić SB, Radojević-Škodrić S, Gomes CM, Paunović IR, Dragutinović V. Matrix Metalloproteinases 2 and 9 and Their Tissue Inhibitors in the Diagnostics of Medullary Thyroid Carcinoma. Appl Immunohistochem Mol Morphol 2023; 31:121-127. [PMID: 36512647 DOI: 10.1097/pai.0000000000001092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 11/02/2022] [Indexed: 12/15/2022]
Abstract
Medullary Thyroid Carcinoma (MTC) is a tumor of the neuroendocrine system. In recent years, the need to assess the MTC diagnostic-related parameters has emerged with the aim to elucidate the mechanisms involved in this pathology. The objective of this study was to evaluate the role of Matrix Metalloproteinases (MMPs) 2 and 9, their tissue inhibitors of matrix metalloproteinases (TIMPs), S100 protein, and amyloid in the diagnostic of MTC. Thirty-two samples with MTC (72% women) were included in this cross-sectional study and divided by groups: T category 1 (T1)≤20 mm and T category 2 (T2) 20 to 40 mm of tumor size. MMPs 2 and 9, TIMPs 2 and 1, S100 protein, and calcitonin in tissues were obtained by immunohistochemical techniques. The presence of amyloid in tissue sections was detected on Thioflavin T-stained slides under fluorescent microscope. Percentage of positive cells (P) observed for MMP-2 was higher in those samples presenting T2 MTC with respect to those with T1 MTC ( P <0.05). Moreover, P-MMP-2 showed a direct correlation with higher T category of MTC (Rho=0.439, P < 0.001), whereas P-MPP-9 was directly correlated with S100 protein and the intensity of calcitonin in tissues (Rho=0.419, P =0.017; Rho=0.422, P =0.016, respectively. Therefore, MMPs were directly correlated with some traditional biomarkers of MTC. In this regard, P-MMP-2 was more expressed in type 2 MTC. Combining the analysis of traditional and other useful biomarkers of MTC as MMPs 2 and 9 could be a useful strategy in the diagnostic of MTC.
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Affiliation(s)
- Héctor Vázquez-Lorente
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology "José Mataix," University of Granada, Granada, Spain
| | | | | | | | - Cláudio M Gomes
- Institute of Biosystems & Integrative Sciences
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Ivan R Paunović
- Faculty of Medicine, University of Belgrade
- Center for Endocrine Surgery, Clinical Center of Serbia
| | - Vesna Dragutinović
- Institute of Chemistry in Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Saeidi V, Doudican N, Carucci JA. Understanding the squamous cell carcinoma immune microenvironment. Front Immunol 2023; 14:1084873. [PMID: 36793738 PMCID: PMC9922717 DOI: 10.3389/fimmu.2023.1084873] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023] Open
Abstract
Primary cutaneous squamous cell carcinoma (cSCC) is the second most common human cancer with a rising incidence of about 1.8 million in the United States annually. Primary cSCC is usually curable by surgery; however, in some cases, cSCC eventuates in nodal metastasis and death from disease specific death. cSCC results in up to 15,000 deaths each year in the United States. Until recently, non-surgical options for treatment of locally advanced or metastatic cSCC were largely ineffective. With the advent of checkpoint inhibitor immunotherapy, including cemiplimab and pembrolizumab, response rates climbed to 50%, representing a vast improvement over chemotherapeutic agents used previously. Herein, we discuss the phenotype and function of SCC associated Langerhans cells, dendritic cells, macrophages, myeloid derived suppressor cells and T cells as well as SCC-associated lymphatics and blood vessels. Possible role(s) of SCC-associated cytokines in progression and invasion are reviewed. We also discuss the SCC immune microenvironment in the context of currently available and pipeline therapeutics.
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Affiliation(s)
- Vahide Saeidi
- Section of Dermatologic Surgery, Ronald O. Perelman Department of Dermatology, New York University Langone Medical Center, New York, NY, United States
| | - Nicole Doudican
- Section of Dermatologic Surgery, Ronald O. Perelman Department of Dermatology, New York University Langone Medical Center, New York, NY, United States
| | - John A Carucci
- Section of Dermatologic Surgery, Ronald O. Perelman Department of Dermatology, New York University Langone Medical Center, New York, NY, United States
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7
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Tsai TY, Kao HK, Huang Y, Chang YT, Young CK, Hung SY, Chang YS, Yu JS, Chang KP. Plasma Matrix Metalloproteinase-1 as a Prognostic Biomarker in Oral Cavity Squamous Cell Carcinoma. Cancer Manag Res 2022; 14:3459-3468. [PMID: 36545225 PMCID: PMC9762675 DOI: 10.2147/cmar.s389742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
Purpose Plasma matrix metalloproteinase-1 (MMP-1) is a collagenase encoded by the MMP-1 gene. However, the prognostic value of plasma MMP-1 levels in oral cavity squamous cell carcinoma (OSCC) has yet to be elucidated. The study is the first to use a cohort of OSCC patients to assess the association of plasma MMP-1 levels with clinicopathological factors/survival outcomes in OSCC patients. Patients and Methods A total of 677 patients were retrospectively enrolled, including 276 oral potentially malignant disease (OPMD) and 401 OSCC patients from 2013 to 2021. Pretreatment plasma MMP-1 levels were measured with an enzyme-linked immunosorbent assay, and the values were compared between OPMD and OSCC patients. Furthermore, the association of plasma MMP-1 levels and clinicopathological characteristics/survival outcomes in OSCC patients was investigated. Results Plasma MMP-1 levels were significantly higher in OSCC patients than in OPMD patients (p = 0.04). In the OSCC group, plasma MMP-1 levels were significantly higher in females, tumor depth ≥10 mm, advanced pT classification and advanced overall stage (p = 0.04, <0.001, <0.001, 0.002, respectively). Higher plasma MMP-1 levels were significantly associated with poorer overall, disease-specific, disease-free, locoregional recurrence-free and distant metastasis-free survival (p = 0.003, 0.02, 0.005, 0.01, 0.001, respectively). Multivariate analysis revealed that plasma MMP-1 levels were a significant predictor for overall, disease-free, and distant metastasis-free survival (p = 0.03, 0.02, and 0.010, respectively). Conclusion Plasma MMP-1 levels are associated with more severe clinicopathological manifestations and can also be regarded as a significant prognostic factor for OSCC posttreatment outcomes.
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Affiliation(s)
- Tsung-You Tsai
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Huang-Kai Kao
- College of Medicine, Chang Gung University, Taoyuan, Taiwan,Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Yenlin Huang
- Department of Pathology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Ya-Ting Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Chi-Kuang Young
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Shao-Yu Hung
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Yu-Sun Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Jau-Song Yu
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan,Molecular Medicine Research Center, Chang Gung University, Taoyuan, 33302, Taiwan,Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Kai-Ping Chang
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan,College of Medicine, Chang Gung University, Taoyuan, Taiwan,Molecular Medicine Research Center, Chang Gung University, Taoyuan, 33302, Taiwan,Correspondence: Kai-Ping Chang, Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital & College of Medicine, Chang Gung University, No. 5, Fu-Hsing St, Kweishan, Taoyuan, 33305, Taiwan, Tel +886-3-3281200 ext.3967, Fax +886-3-3979361, Email
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8
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Zheng Y, Liu M, Jiang L. Progress of photoacoustic imaging combined with targeted photoacoustic contrast agents in tumor molecular imaging. Front Chem 2022; 10:1077937. [PMID: 36479441 PMCID: PMC9720136 DOI: 10.3389/fchem.2022.1077937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 11/11/2022] [Indexed: 11/22/2022] Open
Abstract
Molecular imaging visualizes, characterizes, and measures biological processes at the molecular and cellular level. In oncology, molecular imaging is an important technology to guide integrated and precise diagnosis and treatment. Photoacoustic imaging is mainly divided into three categories: photoacoustic microscopy, photoacoustic tomography and photoacoustic endoscopy. Different from traditional imaging technology, which uses the physical properties of tissues to detect and identify diseases, photoacoustic imaging uses the photoacoustic effect to obtain the internal information of tissues. During imaging, lasers excite either endogenous or exogenous photoacoustic contrast agents, which then send out ultrasonic waves. Currently, photoacoustic imaging in conjunction with targeted photoacoustic contrast agents is frequently employed in the research of tumor molecular imaging. In this study, we will examine the latest advancements in photoacoustic imaging technology and targeted photoacoustic contrast agents, as well as the developments in tumor molecular imaging research.
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Zhou J, Xu M, Tan J, Zhou L, Dong F, Huang T. MMP1 acts as a potential regulator of tumor progression and dedifferentiation in papillary thyroid cancer. Front Oncol 2022; 12:1030590. [DOI: 10.3389/fonc.2022.1030590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/26/2022] [Indexed: 11/22/2022] Open
Abstract
Papillary thyroid cancer (PTC) is one of the malignancies with an excellent prognosis. However, in PTC, progression or dedifferentiation into poorly differentiated thyroid cancer (PDTC) or anaplastic thyroid cancer (ATC) extremely jeopardizes patients’ prognosis. MMP1 is a zinc-dependent endopeptidase, and its role in PTC progression and dedifferentiation is unclear. In this study, transcriptome data of PDTC/ATC and PTC from the Gene Expression Omnibus and The Cancer Genome Atlas databases were utilized to perform an integrated analysis of MMP1 as a potential regulator of tumor progression and dedifferentiation in PTC. Both bulk and single-cell RNA-sequencing data confirmed the high expression of MMP1 in ATC tissues and cells, and further study verified that MMP1 possessed good diagnostic and prognostic value in PTC and PDTC/ATC. Up-regulated MMP1 was found to be positively related to more aggressive clinical characteristics, worse survival, extracellular matrix-related pathways, oncogenic immune microenvironment, more mutations, higher stemness, and more dedifferentiation of PTC. Meanwhile, in vitro experiments verified the high level of MMP1 in PDTC/ATC cell lines, and MMP1 knockdown and its inhibitor triolein could both inhibit the cell viability of PTC and PDTC/ATC. In conclusion, our findings suggest that MMP1 is a potential regulator of tumor progression and dedifferentiation in PTC, and might become a novel therapeutic target for PTC, especially for more aggressive PDTC and ATC.
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Baldini E, Presutti D, Favoriti P, Santini S, Papoff G, Tuccilli C, Carletti R, Di Gioia C, Lori E, Ferent IC, Gagliardi F, Catania A, Pironi D, Tripodi D, D’Andrea V, Sorrenti S, Ruberti G, Ulisse S. In Vitro and In Vivo Effects of the Urokinase Plasminogen Activator Inhibitor WX-340 on Anaplastic Thyroid Cancer Cell Lines. Int J Mol Sci 2022; 23:ijms23073724. [PMID: 35409084 PMCID: PMC8999125 DOI: 10.3390/ijms23073724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 12/19/2022] Open
Abstract
Increased expression of the urokinase-type plasminogen activator (uPA) system is associated with tumor invasion, neo-angiogenesis, and metastatic spread, and has been shown to positively correlate with a poor prognosis in several cancer types, including thyroid carcinomas. In recent years, several uPA inhibitors were found to have anticancer effects in preclinical studies and in some phase II clinical trials, which prompted us to evaluate uPA as a potential therapeutic target for the treatment of patients affected by the most aggressive form of thyroid cancer, the anaplastic thyroid carcinoma (ATC). In this study, we evaluated the in vitro and in vivo effects of WX-340, a highly specific and selective uPA inhibitor, on two ATC-derived cell lines, CAL-62 and BHT-101. The results obtained indicated that WX-340 was able to reduce cell adhesion and invasiveness in a dose-dependent manner in both cell lines. In addition, WX-340 increased uPA receptor (uPAR) protein levels without affecting its plasma membrane concentration. However, this compound was unable to significantly reduce ATC growth in a xenograft model, indicating that uPA inhibition alone may not have the expected therapeutic effects.
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Affiliation(s)
- Enke Baldini
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Dario Presutti
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Monterotondo, 00015 Rome, Italy; (D.P.); (S.S.); (G.P.); (G.R.)
| | - Pasqualino Favoriti
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Simonetta Santini
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Monterotondo, 00015 Rome, Italy; (D.P.); (S.S.); (G.P.); (G.R.)
| | - Giuliana Papoff
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Monterotondo, 00015 Rome, Italy; (D.P.); (S.S.); (G.P.); (G.R.)
| | - Chiara Tuccilli
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Raffaella Carletti
- Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (R.C.); (C.D.G.)
| | - Cira Di Gioia
- Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (R.C.); (C.D.G.)
| | - Eleonora Lori
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Iulia Catalina Ferent
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Federica Gagliardi
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Antonio Catania
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Daniele Pironi
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Domenico Tripodi
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Vito D’Andrea
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Salvatore Sorrenti
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
| | - Giovina Ruberti
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Monterotondo, 00015 Rome, Italy; (D.P.); (S.S.); (G.P.); (G.R.)
| | - Salvatore Ulisse
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (P.F.); (C.T.); (E.L.); (I.C.F.); (F.G.); (A.C.); (D.P.); (D.T.); (V.D.); (S.S.)
- Correspondence:
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Papillary Thyroid Cancer Prognosis: An Evolving Field. Cancers (Basel) 2021; 13:cancers13215567. [PMID: 34771729 PMCID: PMC8582937 DOI: 10.3390/cancers13215567] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Over the last couple of decades, the prognostic stratification systems of differentiated thyroid cancer (DTC) patients have been revised several times in an attempt to achieve a tailored clinical management reflecting the single patients’ needs. Such revisions are likely to continue in the near future, since the prognostic value of a number of promising clinicopathological features and new molecular biomarkers are being evaluated. Here, we will review the current staging systems of thyroid cancer patients and discuss the most relevant clinicopathological parameters and new molecular markers that are potentially capable of refining the prognosis. Abstract Over the last few years, a great advance has been made in the comprehension of the molecular pathogenesis underlying thyroid cancer progression, particularly for the papillary thyroid cancer (PTC), which represents the most common thyroid malignancy. Putative cancer driver mutations have been identified in more than 98% of PTC, and a new PTC classification into molecular subtypes has been proposed in order to resolve clinical uncertainties still present in the clinical management of patients. Additionally, the prognostic stratification systems have been profoundly modified over the last decade, with a view to refine patients’ staging and being able to choose a clinical approach tailored on single patient’s needs. Here, we will briefly discuss the recent changes in the clinical management of thyroid nodules, and review the current staging systems of thyroid cancer patients by analyzing promising clinicopathological features (i.e., gender, thyroid auto-immunity, multifocality, PTC histological variants, and vascular invasion) as well as new molecular markers (i.e., BRAF/TERT promoter mutations, miRNAs, and components of the plasminogen activating system) potentially capable of ameliorating the prognosis of PTC patients.
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A Proposed Grading Scheme for Medullary Thyroid Carcinoma Based on Proliferative Activity (Ki-67 and Mitotic Count) and Coagulative Necrosis. Am J Surg Pathol 2020; 44:1419-1428. [PMID: 32452872 PMCID: PMC7641183 DOI: 10.1097/pas.0000000000001505] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We investigated the prognostic value of a range of histologic parameters in medullary thyroid carcinoma (MTC) to design a grading system to predict overall survival. We assessed 76 patients with MTCs undergoing primary tumor resection for age, sex, tumor size, vascular space invasion, lymph node metastasis, multiple endocrine neoplasia type 2 (MEN2) status, mitotic count, Ki-67 proliferative index, spindled morphology, sheet-like growth pattern, coagulative necrosis, incipient necrosis, nuclear grade, multinucleation, prominent nucleoli, fibrosis, and amyloid deposition. In addition to the clinical features of age and the diagnosis of MEN2, the only histologic features that significantly predicted reduced overall survival were Ki-67 proliferative index, mitotic count, and the presence of coagulative necrosis. Using a combination of these 3 variables, we propose a 3-tiered grading system based solely on proliferative activity (Ki-67 proliferative index and mitotic count) and necrosis. There were 62 (82%) low-grade MTCs (low proliferative activity, no necrosis), 9 (12%) intermediate grade (low proliferative activity and necrosis present, or intermediate proliferative activity and no necrosis), and 5 (7%) high grade (intermediate proliferative activity and necrosis present, or high proliferative activity with or without necrosis). The mean overall survival was 193, 146, and 45 months, respectively (P=0.0001) for the 3 grades. The grading system remained prognostic when controlled for other factors associated with survival including age and known MEN2 syndrome. We conclude that this proposed grading system, which uses only a combination of proliferative activity (Ki-67 index, mitotic count) and coagulative necrosis, is a strong predictor of overall survival in MTC.
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Rysenkova KD, Klimovich PS, Shmakova AA, Karagyaur MN, Ivanova KA, Aleksandrushkina NA, Tkachuk VA, Rubina KA, Semina EV. Urokinase receptor deficiency results in EGFR-mediated failure to transmit signals for cell survival and neurite formation in mouse neuroblastoma cells. Cell Signal 2020; 75:109741. [PMID: 32822758 DOI: 10.1016/j.cellsig.2020.109741] [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: 05/12/2020] [Revised: 08/14/2020] [Accepted: 08/14/2020] [Indexed: 12/26/2022]
Abstract
Urokinase-type plasminogen activator uPA and its receptor (uPAR) are the central players in extracellular matrix proteolysis, which facilitates cancer invasion and metastasis. EGFR is one of the important components of uPAR interactome. uPAR/EGFR interaction controls signaling pathways that regulate cell survival, proliferation and migration. We have previously established that uPA binding to uPAR stimulates neurite elongation in neuroblastoma cells, while blocking uPA/uPAR interaction induces neurite branching and new neurite formation. Here we demonstrate that blocking the uPA binding to uPAR with anti-uPAR antibody decreases the level of pEGFR and its downstream pERK1/2, but does increase phosphorylation of Akt, p38 and c-Src Since long-term uPAR blocking results in a severe DNA damage, accompanied by PARP-1 proteolysis and Neuro2a cell death, we surmise that Akt, p38 and c-Src activation transmits a pro-apoptotic signal, rather than a survival. Serum deprivation resulting in enhanced neuritogenesis is accompanied by an upregulated uPAR mRNA expression, while EGFR mRNA remains unchanged. EGFR activation by EGF stimulates neurite growth only in uPAR-overexpressing cells but not in control or uPAR-deficient cells. In addition, AG1478-mediated inhibition of EGFR activity impedes neurite growth in control and uPAR-deficient cells, but not in uPAR-overexpressing cells. Altogether these data implicate uPAR as an important regulator of EGFR and ERK1/2 signaling, representing a novel mechanism which implicates urokinase system in neuroblastoma cell survival and differentiation.
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Affiliation(s)
- K D Rysenkova
- Laboratory of Molecular Endocrinology, Institute of Experimental Cardiology, Federal State Budgetary Organization National Cardiology Research Center Ministry of Health of the Russian Federation, Moscow, Russia; Laboratory of Gene and Cell Technologies, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - P S Klimovich
- Laboratory of Molecular Endocrinology, Institute of Experimental Cardiology, Federal State Budgetary Organization National Cardiology Research Center Ministry of Health of the Russian Federation, Moscow, Russia
| | - A A Shmakova
- Laboratory of Molecular Endocrinology, Institute of Experimental Cardiology, Federal State Budgetary Organization National Cardiology Research Center Ministry of Health of the Russian Federation, Moscow, Russia
| | - M N Karagyaur
- Institute of Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
| | - K A Ivanova
- Laboratory of Gene and Cell Technologies, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - N A Aleksandrushkina
- Laboratory of Gene and Cell Technologies, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia; Institute of Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
| | - V A Tkachuk
- Laboratory of Molecular Endocrinology, Institute of Experimental Cardiology, Federal State Budgetary Organization National Cardiology Research Center Ministry of Health of the Russian Federation, Moscow, Russia; Laboratory of Gene and Cell Technologies, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - K A Rubina
- Laboratory of Morphogenesis and Tissue Reparation, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia.
| | - E V Semina
- Laboratory of Molecular Endocrinology, Institute of Experimental Cardiology, Federal State Budgetary Organization National Cardiology Research Center Ministry of Health of the Russian Federation, Moscow, Russia; Laboratory of Gene and Cell Technologies, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
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Chang YT, Chu LJ, Liu YC, Chen CJ, Wu SF, Chen CH, Chang IYF, Wang JS, Wu TY, Dash S, Chiang WF, Chiu SF, Gou SB, Chien CY, Chang KP, Yu JS. Verification of Saliva Matrix Metalloproteinase-1 as a Strong Diagnostic Marker of Oral Cavity Cancer. Cancers (Basel) 2020; 12:cancers12082273. [PMID: 32823758 PMCID: PMC7463746 DOI: 10.3390/cancers12082273] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/05/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) accounts for >90% of cases of oral cancer, including cancer at the lip and oral cavity and cancer at the oropharynx. Most OSCCs develop from oral potentially malignant disorders (OPMDs), which consist of heterogeneous lesions with different malignant transformation potentials that make early detection of OSCC a challenge. Using a targeted mass spectrometry-based assay to compare multiple candidate proteins, we previously identified matrix metalloproteinase-1 (MMP-1) as one of the most promising salivary OSCC biomarkers. To explore the clinical utility of MMP-1 in OSCC detection, we developed an in-house, sensitive enzyme-linked immunosorbent assay (ELISA) for measuring MMP-1 content, and tested it on saliva samples from 1160 subjects (313 healthy controls, and 578 OPMD and 269 OSCC patients) collected at two medical centers. Salivary MMP-1 levels measured by our in-house ELISA significantly discriminated OSCC patients from non-cancerous groups. A receiver operating characteristic curve analysis showed that MMP-1 was effective in separating non-cancer groups from patients with OSCCs at the oral cavity. Additionally, salivary MMP-1 levels in oral cavity cancer patients were highly correlated with tumor progression (tumor size, lymph node metastasis, and overall stage). Collectively, our results indicate that salivary MMP-1 is an effective biomarker for OSCC that can be sensitively detected using our newly developed ELISA. The newly developed MMP-1 ELISA may be used as a new adjunctive tool to aid in detecting and monitoring OSCC.
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Affiliation(s)
- Ya-Ting Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Lichieh Julie Chu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
- Liver Research Center, Chang Gung Memorial Hospital, Linkou 33305, Taiwan
| | - Yen-Chun Liu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Chih-Jou Chen
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Shu-Fang Wu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Chien-Hua Chen
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Ian Yi-Feng Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
| | - Jun-Sheng Wang
- National Applied Research Laboratories, Taiwan Instrument Research Institute, Zhubei City, Hsinchu 30261, Taiwan;
| | - Tzong-Yuan Wu
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan 32023, Taiwan;
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
| | - Srinivas Dash
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
| | - Wei-Fan Chiang
- Department of Oral and Maxillofacial Surgery, Chi-Mei Medical Center, Liouying, Tainan 73657, Taiwan; (W.-F.C.); (S.-F.C.); (S.-B.G.)
- School of Dentistry, National Yang Ming University, Taipei 11221, Taiwan
| | - Sheng-Fu Chiu
- Department of Oral and Maxillofacial Surgery, Chi-Mei Medical Center, Liouying, Tainan 73657, Taiwan; (W.-F.C.); (S.-F.C.); (S.-B.G.)
| | - Shin-Bin Gou
- Department of Oral and Maxillofacial Surgery, Chi-Mei Medical Center, Liouying, Tainan 73657, Taiwan; (W.-F.C.); (S.-F.C.); (S.-B.G.)
| | - Chih-Yen Chien
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Kai-Ping Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou 33305, Taiwan
| | - Jau-Song Yu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 33302, Taiwan; (Y.-T.C.); (L.J.C.); (Y.-C.L.); (C.-J.C.); (S.-F.W.); (C.-H.C.); (I.Y.-F.C.); (K.-P.C.)
- Liver Research Center, Chang Gung Memorial Hospital, Linkou 33305, Taiwan
- Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
- Correspondence: ; Tel.: +886-3-2118800 (ext. 5171); Fax: +886-3-2118891
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The Impact of Transcription Factor Prospero Homeobox 1 on the Regulation of Thyroid Cancer Malignancy. Int J Mol Sci 2020; 21:ijms21093220. [PMID: 32370142 PMCID: PMC7247360 DOI: 10.3390/ijms21093220] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 12/11/2022] Open
Abstract
Transcription factor Prospero homeobox 1 (PROX1) is continuously expressed in the lymphatic endothelial cells, playing an essential role in their differentiation. Many reports have shown that PROX1 is implicated in cancer development and acts as an oncoprotein or suppressor in a tissue-dependent manner. Additionally, the PROX1 expression in many types of tumors has prognostic significance and is associated with patient outcomes. In our previous experimental studies, we showed that PROX1 is present in the thyroid cancer (THC) cells of different origins and has a high impact on follicular thyroid cancer (FTC) phenotypes, regulating migration, invasion, focal adhesion, cytoskeleton reorganization, and angiogenesis. Herein, we discuss the PROX1 transcript and protein structures, the expression pattern of PROX1 in THC specimens, and its epigenetic regulation. Next, we emphasize the biological processes and genes regulated by PROX1 in CGTH-W-1 cells, derived from squamous cell carcinoma of the thyroid gland. Finally, we discuss the interaction of PROX1 with other lymphatic factors. In our review, we aimed to highlight the importance of vascular molecules in cancer development and provide an update on the functionality of PROX1 in THC biology regulation.
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Steinberg I, Huland DM, Vermesh O, Frostig HE, Tummers WS, Gambhir SS. Photoacoustic clinical imaging. PHOTOACOUSTICS 2019; 14:77-98. [PMID: 31293884 PMCID: PMC6595011 DOI: 10.1016/j.pacs.2019.05.001] [Citation(s) in RCA: 277] [Impact Index Per Article: 55.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 04/09/2019] [Accepted: 05/30/2019] [Indexed: 05/18/2023]
Abstract
Photoacoustic is an emerging biomedical imaging modality, which allows imaging optical absorbers in the tissue by acoustic detectors (light in - sound out). Such a technique has an immense potential for clinical translation since it allows high resolution, sufficient imaging depth, with diverse endogenous and exogenous contrast, and is free from ionizing radiation. In recent years, tremendous developments in both the instrumentation and imaging agents have been achieved. These opened avenues for clinical imaging of various sites allowed applications such as brain functional imaging, breast cancer screening, diagnosis of psoriasis and skin lesions, biopsy and surgery guidance, the guidance of tumor therapies at the reproductive and urological systems, as well as imaging tumor metastases at the sentinel lymph nodes. Here we survey the various clinical and pre-clinical literature and discuss the potential applications and hurdles that still need to be overcome.
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Affiliation(s)
- Idan Steinberg
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Department of Bioengineering, At Stanford University, School of Medicine, Stanford, CA, United States
| | - David M. Huland
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, At Stanford University, School of Medicine, Stanford, CA, United States
| | - Ophir Vermesh
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, At Stanford University, School of Medicine, Stanford, CA, United States
| | - Hadas E. Frostig
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, At Stanford University, School of Medicine, Stanford, CA, United States
| | - Willemieke S. Tummers
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, At Stanford University, School of Medicine, Stanford, CA, United States
| | - Sanjiv S. Gambhir
- Department of Radiology, At Stanford University, School of Medicine, Stanford, CA, United States
- Department of Bioengineering, At Stanford University, School of Medicine, Stanford, CA, United States
- Department of Materials Science & Engineering, At Stanford University, School of Medicine, Stanford, CA, United States
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, At Stanford University, School of Medicine, Stanford, CA, United States
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Zhang Z, Dong T, Fu Y, Zhou W, Tian X, Chen G, Liu S. MMP-11 promotes papillary thyroid cell proliferation and invasion via the NF-κB pathway. J Cell Biochem 2019; 120:1860-1868. [PMID: 30171715 DOI: 10.1002/jcb.27500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/20/2018] [Indexed: 01/24/2023]
Abstract
Papillary thyroid carcinoma (PTC) is the most common form of thyroid cancer, and its incidence is on the rise. It has been reported that some matrix metalloproteinases (MMPs) are abnormally expressed in PTC and can be used as diagnostic markers. However, few studies have explored the underlying mechanisms by which MMPs promote tumor progression. In this study, we used microarray analysis to compare the variations of gene expression within the PTC cell populations and their adjacent normal tissues and found that MMP-11 was the most differentially expressed MMP. To investigate the role of MMP-11 in the mediation of thyroid cancer cell development, pEnter-MMP-11 plasmid, and MMP-11 small interfering RNA were applied to up- and downregulate MMP-11 expression of in cultured PTC cell lines K1 and BCPAP. The results suggested that the levels of proliferation and migration of cells transfected with MMP-11 siRNA were significantly reduced, while the levels in MMP-11-plasmid-transfected cells were increased. In terms of the mechanism, experimental data showed that the change in cyclin D1 is consistent with MMP-11 expression, which may explain the changes in proliferation. In addition, Western blot assay was conducted to analyze the p65 and activated (phospho-) p65 protein levels concomitant with MMP-11 adjustments. Variations in intracellular MMP-11 significantly altered the amount of phospho-p65 in thyroid cells, while p65 knockdown did not affect MMP-11 expression. These results suggest that MMP-11 is located upstream of p65 and regulates its activity. Interestingly, the data for the Transwell assay suggested that MMP-11 regulatory migration is also associated with the NF-κB p65 signaling pathway. In conclusion, this report describes the important role of MMP-11 in the regulation of thyroid cell proliferation and migration. Mechanistic studies have shown that cyclin D1 and p65 are important mediators in the processes, which provides a new way to study the mechanism of MMPs promoting the progression of thyroid cancer.
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Affiliation(s)
- Zhun Zhang
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China.,Department of Breast Thyroid Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Tianyi Dong
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China.,Department of Breast Thyroid Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Ying Fu
- Department of Nuclear Medicine, Hunan Cancer Hospital Affiliated to Central South University, Changsha, Hunan, 410083, China
| | - Wenhong Zhou
- Department of Nursing, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Xingsong Tian
- Department of Breast Thyroid Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Gengyu Chen
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China.,Department of Breast Thyroid Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Shili Liu
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
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Zarkesh M, Zadeh-Vakili A, Akbarzadeh M, Fanaei SA, Hedayati M, Azizi F. The role of matrix metalloproteinase-9 as a prognostic biomarker in papillary thyroid cancer. BMC Cancer 2018; 18:1199. [PMID: 30509240 PMCID: PMC6276227 DOI: 10.1186/s12885-018-5112-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 11/20/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The aim of the present study was to investigate the association between matrix metalloproteinase-9 (MMP-9) expression with BRAF V600E mutation and clinicopathological features, in Iranian papillary thyroid cancer (PTC) patients. METHODS In total, 90 participants including 60 PTC patients (15 males and 45 females) and 30 individuals with benign multinodular goiter (MNG) (5 males and 25 females) which were confirmed by surgical pathology, were investigated. MMP-9 was evaluated at both mRNA and protein levels, using SYBR-Green Real-Time PCR and enzyme-linked immune sorbent assay (ELISA), respectively. BRAF V600E mutation was detected by sequencing. RESULTS Mean age of PTC and MNG patients was 37.6 ± 12.6 and 48.1 ± 13.3 years, respectively (P = 0.001). BRAF V600E mutation was found in 24 of the 60 (40%) PTC cases, with mean tumor size of 1.59 ± 1.20 cm. MMP-9 mRNA levels were elevated in tumoral compared to the adjacent non-tumoral tissues (P = 0.039); moreover, this rise was also observed in PTC patients compared to MNG patients (P = 0.001). The mRNA levels of MMP-9 increased in patients aged≥45 years (P = 0.015), those with lymphovascular invasion (P = 0.003), and higher tumor stages (III and IV) (P = 0.011). The protein level of MMP-9 increased in tumoral compared to adjacent non-tumoral tissues (P < 0.001); this increase was also found in PTC patients compared to MNG participants (P = 0.004). MMP-9 protein level was higher in patients aged≥45 years (P = 0.001), those with lymphovascular invasion (P = 0.036) and higher TNM stages (III and IV) (P = 0.001). Area under the ROC curve (AUC) was 0.70 (95%CI: 0.57-0.83, P = 0.003), with 91.4% sensitivity and 51.9% specificity at the cutoff value of 0.50. CONCLUSION The mRNA and protein levels of MMP-9 had no association with BRAF V600E mutation in Iranian PTC patients. These levels were associated with age, TNM stages, and lymphovascular invasion, being defined as malignant factors. Thus, elevated levels of MMP-9 in PTC patients compared to MNG participants illustrated that it can be used as a potential biomarker to differentiate PTC patients from those with MNG.
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Affiliation(s)
- Maryam Zarkesh
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Po Box: 19395-4763, Tehran, Iran
| | - Azita Zadeh-Vakili
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Po Box: 19395-4763, Tehran, Iran.
| | - Mahdi Akbarzadeh
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Ahmad Fanaei
- Association Professor of General Surgery, Erfan Hospital, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Science, Tehran, Iran
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An improved collagen zymography approach for evaluating the collagenases MMP-1, MMP-8, and MMP-13. Biotechniques 2017; 63:174-180. [PMID: 29048269 DOI: 10.2144/000114597] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 09/07/2017] [Indexed: 11/23/2022] Open
Abstract
Collagen zymography is an SDS-PAGE-based method for detecting both the proenzyme and active forms of collagenases. Although collagen zymography is used for assessment of the matrix metalloproteinases MMP-1 and MMP-13, it can be difficult to detect these collagenases due to technical issues. Moreover, it remains unclear whether the collagenase activity of MMP-8 can be detected by this method. Here, we present an improved collagen zymography method that allows quantification of the activities of MMP-1, MMP-8, and MMP-13. Activities of recombinant collagenases could be detected in collagen zymogram gels copolymerized with 0.3 mg/mL type I collagen extracted from rat tail tendon. This improved method is sensitive enough to detect the activity of as little as 1 ng of collagenase. We generated standard curves for the three collagenases to quantify the collagenolytic activity levels of unknown samples. To validate our improved method, we investigated MMP-1 activity levels in human thyroid cancer (8505C) and normal thyroid (Nthy-ori-3-1) cell lines, finding that the proenzyme and active MMP-1 levels were greater in 8505C cells than in Nthy-ori-3-1 cells. Taken together, our data show that collagen zymography can be used in both molecular and clinical investigations to evaluate collagenase activities in various pathological conditions.
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Heikkilä A, Fermér C, Hagström J, Louhimo J, Mäenpää H, Siironen P, Heiskanen I, Nilsson O, Arola J, Haglund C. A novel stem cell associated marker identified by monoclonal antibody HESC5:3 differentiates between neoplastic lesions in follicular thyroid neoplasms. APMIS 2015; 123:604-12. [DOI: 10.1111/apm.12393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 03/05/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Annukka Heikkilä
- Department of Pathology; Haartman Institute and HUSLAB; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | | | - Jaana Hagström
- Department of Pathology; Haartman Institute and HUSLAB; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | - Johanna Louhimo
- Department of Surgery; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | - Hanna Mäenpää
- Department of Oncology; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | - Päivi Siironen
- Department of Surgery; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | - Ilkka Heiskanen
- Department of Surgery; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | | | - Johanna Arola
- Department of Pathology; Haartman Institute and HUSLAB; University of Helsinki and Helsinki University Hospital; Helsinki Finland
| | - Caj Haglund
- Department of Pathology; Haartman Institute and HUSLAB; University of Helsinki and Helsinki University Hospital; Helsinki Finland
- Department of Surgery; University of Helsinki and Helsinki University Hospital; Helsinki Finland
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Oktay M, Eroz R, Oktay NA, Erdem H, Başar F, Akyol L, Cucer N, Bahadir A. Argyrophilic nucleolar organizing region associated protein synthesis for cytologic discrimination of follicular thyroid lesions. Biotech Histochem 2014; 90:179-83. [PMID: 25420891 DOI: 10.3109/10520295.2014.976271] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Fine needle aspiration biopsy (FNAB) of the thyroid gland is an important tool for preoperative diagnosis; however, its benefit is limited for follicular lesions. Nucleolar organizer regions (NORs) are ribosomal gene regions that stain with silver (Ag) when they are active. These regions can be used to differentiate neoplastic and non-neoplastic lesions. We used a new AgNOR technique to investigate FNAB of cases diagnosed as follicular adenoma and carcinoma. Fourteen cases of follicular thyroid carcinoma (FTC) and 28 cases of thyroid follicular adenomas (FA) were stained using the silver NOR-associated protein (AgNOR) technique. One hundred nuclei per sample were examined, AgNORs were counted, and the total AgNOR area/nuclear area (TNORa/Na) ratio of each cell was calculated. We found that cases with FTC had significantly higher TNORa/Na than cases of FA. Also, cases with FTC had significantly higher AgNOR counts than cases with FA. AgNOR counting may help discriminate FTC and FA by routine cytopathology before surgery.
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Affiliation(s)
- M Oktay
- Department of Pathology, Duzce University , Duzce 81620 , Turkey
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22
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Marecko I, Cvejic D, Selemetjev S, Paskas S, Tatic S, Paunovic I, Savin S. Enhanced activation of matrix metalloproteinase-9 correlates with the degree of papillary thyroid carcinoma infiltration. Croat Med J 2014; 55:128-37. [PMID: 24778099 PMCID: PMC4009713 DOI: 10.3325/cmj.2014.55.128] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
AIM To determine whether matrix metalloproteinase-9 (MMP-9) may be a useful adjunctive tool for predicting unfavorable biological behavior of papillary thyroid carcinoma (PTC) by evaluating the expression profile and proteolytic activity of MMP-9 in PTC by different techniques and correlating the findings with clinicopathological prognostic factors. METHODS Immunohistochemical localization of MMP-9 was analyzed with antibodies specific for either total or active MMP-9. Activation ratios of MMP-9 were calculated by quantifying gel zymography bands. Enzymatic activity of MMP-9 was localized by in situ zymography after inhibiting MMP-2 activity. RESULTS Immunostaining of total and active MMP-9 was observed in tumor tissue and occasionally in non-neoplastic epithelium. Only active MMP-9 was significantly associated with extrathyroid invasion, lymph-node metastasis, and the degree of tumor infiltration (P<0.001, P=0.004, and P<0.001, respectively). Gelatin zymography revealed a correlation between the MMP-9 activation ratio and nodal involvement, extrathyroid invasion, and the degree of tumor infiltration. In situ zymography showed that gelatinases exerted their activity in tumor parenchymal and stromal cells. Moreover, after application of MMP-2 inhibitor, the remaining gelatinase activity, corresponding to MMP-9, was highest in cancers with the most advanced degree of tumor infiltration. CONCLUSIONS This is the first report suggesting that the evaluation of active MMP-9 by immunohistochemistry and determination of its activation ratio by gelatin zymography may be a useful adjunct to the known clinicopathological factors in predicting tumor behavior. Most important, in situ zimography with an MMP-2 inhibitor for the first time demonstrated a strong impact of MMP-9 activity on the degree of tumor infiltration during PTC progression.
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Affiliation(s)
| | | | | | | | | | | | - Svetlana Savin
- Svetlana Savin, Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Banatska 31b, 11080 Zemun - Belgrade, Serbia,
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Baldini E, Sorrenti S, Tuccilli C, Prinzi N, Coccaro C, Catania A, Filippini A, Bononi M, De Antoni E, D'Armiento M, Ulisse S. Emerging molecular markers for the prognosis of differentiated thyroid cancer patients. Int J Surg 2014; 12 Suppl 1:S52-6. [PMID: 24862669 DOI: 10.1016/j.ijsu.2014.05.054] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 05/03/2014] [Indexed: 01/08/2023]
Abstract
Epithelial thyroid cancers are represented by the differentiated papillary and follicular thyroid carcinomas which, following dedifferentiation, are thought to give rise to the highly aggressive and incurable anaplastic thyroid carcinomas. Although derived from the same cell type, the different thyroid tumors show specific histological features, biological behavior and degree of differentiation as a consequence of different genetic alterations. Over the last few years, our knowledge regarding the molecular alterations underlying thyroid cell malignant transformation and cancer progression has considerably increased; however, the prognosis of differentiated thyroid cancer patients still relies on high-risk clinic-pathological variables. In particular, the actual staging systems provides only a rough prediction for cancer mortality and risk of recurrences, including in each risk group patients with highly different tumor-specific progression, disease-free interval and survival time. In order to improve DTC patient's risk stratification, both the European and the American Thyroid Associations proposed practical guidelines to integrate the actual staging systems with additional clinical features such as the tumor histological variant, the results of post-ablative whole body scan and the serum thyroglobulin levels. Despite that, patients within the same risk group still show a very heterogeneous behavior in terms of disease-free interval. As a consequence, the identification of new prognostic molecular biomarkers able to testify tumor aggressiveness is highly required. Here we'll review recently characterized new molecular markers potentially able to ameliorate the prognosis in DTC patients.
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Affiliation(s)
- Enke Baldini
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | | | - Chiara Tuccilli
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Natalie Prinzi
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Carmela Coccaro
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Antonio Catania
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Angelo Filippini
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Marco Bononi
- Department of Surgery "Pietro Valdoni", "Sapienza" University of Rome, Italy
| | - Enrico De Antoni
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Massimino D'Armiento
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Salvatore Ulisse
- Department of Experimental Medicine, "Sapienza" University of Rome, Viale Regina Elena 324, 00161 Rome, Italy.
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Mekkawy AH, Pourgholami MH, Morris DL. Involvement of urokinase-type plasminogen activator system in cancer: an overview. Med Res Rev 2014; 34:918-56. [PMID: 24549574 DOI: 10.1002/med.21308] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Currently, there are several studies supporting the role of urokinase-type plasminogen activator (uPA) system in cancer. The association of uPA to its receptor triggers the conversion of plasminogen into plasmin. This process is regulated by the uPA inhibitors (PAI-1 and PAI-2). Plasmin promotes degradation of basement membrane and extracellular matrix (ECM) components as well as activation of ECM latent matrix metalloproteases. Degradation and remodeling of the surrounding tissues is crucial in the early steps of tumor progression by facilitating expansion of the tumor mass, release of tumor growth factors, activation of cytokines as well as induction of tumor cell proliferation, migration, and invasion. Hence, many tumors showed a correlation between uPA system component levels and tumor aggressiveness and survival. Therefore, this review summarizes the structure of the uPA system, its contribution to cancer progression, and the clinical relevance of uPA family members in cancer diagnosis. In addition, the review evaluates the significance of uPA system in the development of cancer-targeted therapies.
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Affiliation(s)
- Ahmed H Mekkawy
- Department of Surgery, Cancer Research Laboratories, St. George Hospital, University of New South Wales, Sydney, NSW 2217, Australia
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25
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Expression of TGF-β1, SNAI1 and MMP-9 is associated with lymph node metastasis in papillary thyroid carcinoma. J Mol Histol 2013; 45:391-9. [DOI: 10.1007/s10735-013-9557-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Accepted: 11/21/2013] [Indexed: 01/30/2023]
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26
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Classification of aerodigestive tract invasion from thyroid cancer. Langenbecks Arch Surg 2013; 399:209-16. [PMID: 24271275 DOI: 10.1007/s00423-013-1142-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 11/05/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND Widely invasive extrathyroidal thyroid cancer invading the aerodigestive tract (ADT) including larynx, trachea, hypopharynx, and/or esophagus occurs in 1-8 % of patients with thyroid cancer and is classified as T4a (current UICC/AJCC system). The T4a stage is associated with impaired tumor-free survival and increased disease-specific mortality. Concerning prognosis and outcome, further subdivisions of the T4a stage, however, have not been made so far. METHODS This study is based on a systematic review of the relevant literature in the PubMed database. RESULTS Retrospective studies suggest a better outcome in patients with invasion of the trachea or the esophagus when compared to laryngeal invasion. Regarding surgical strategies, ADT invasion can be classified based on a three-dimensional assessment determining surgical resection options. Regardless of the invaded structure, tumor infiltration of the ADT can be subdivided into superficial, deep extraluminal, and intraluminal invasion. In contrast to superficial ADT invasion, allowing tangential incomplete wall resection (shaving/extramucosal esophagus resection), deeper wall and intraluminal invasions require complete wall resection (either window or sleeve). Based on the Dralle classification (types 1-6), particularly airway invasion, can be further classified according to the vertical and horizontal extents of tumor invasion. CONCLUSIONS The Dralle classification can be considered as a reliable subdivision system evaluated regarding surgical options as well as oncological outcome. However, further studies determining the prognostic impact of this technically oriented classification system are required.
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Li R, Wu W, Liu Q, Wu P, Xie L, Zhu Z, Yang M, Qian X, Ding Y, Yu L, Jiang X, Guan W, Liu B. Intelligently targeted drug delivery and enhanced antitumor effect by gelatinase-responsive nanoparticles. PLoS One 2013; 8:e69643. [PMID: 23936062 PMCID: PMC3728361 DOI: 10.1371/journal.pone.0069643] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 06/11/2013] [Indexed: 02/07/2023] Open
Abstract
AIMS The matrix metalloproteinase (MMP) 2/9, also known as collagenases IV and gelatinases A/B, play a key role in cancer invasion and metastasis. However, the clinical trials of the MMP inhibitors (MMPIs) ended up with disappointing results. In this paper, we synthesized a gelatinase-responsive copolymer (mPEG-PCL) by inserting a gelatinase cleavable peptide (PVGLIG) between mPEG and PCL blocks of mPEG-PCL for anticancer drug delivery to make use of MMP2/9 as an intelligent target for drug delivery. MATERIALS AND METHODS mPEG-pep-PCL copolymer was synthesized via ring-opening copolymerization and double-amidation. To evaluate whether Nanoparticles (NPs) prepared from this copolymer are superior to NPs prepared from mPEG-PCL, NPs prepared from mPEG-PCL copolymer were used as positive control. Docetaxel-loading NPs using mPEG-pep-PCL and mPEG-PCL were prepared by nano-precipitation method, mentioned as Gel-NPs and Con-NPs, respectively. The morphologic changes of the NPs after treatment with gelatinases were observed macroscopically by spectrophotometer and microscopically by transmission electron microscopy (TEM) and atomic force microscopy (AFM). The cellular uptake amount and cytotoxicity of Gel-NPs and Con-NPs, respectively, in cell lines with different levels of gelatinase expression were studied. Moreover, the cytotoxicity study on the primary cancer cells isolated from pericardial fluids from a patient with late-stage lung cancer was conducted. RESULTS The Gel-NPs aggregated in response to gelatinases, which was confirmed macroscopically and microscopically. The cellular uptake amount of Gel-NPs was correlated with the level of gelatinases. The in vitro antitumor effect of Gel-NPs was also correlated with the level of gelatinases and was superior to Taxotere (commercially available docetaxel) as well as the Con-NPs. The cytotoxicity study on the primary lung cancer cells also confirmed the effectiveness of Gel-NPs. CONCLUSION The results in this study preliminarily demonstrated the effectiveness of gelatinase-responsive targeting strategy and the prospect of this intelligent nano-drug delivery system though further studies are needed.
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Affiliation(s)
- Rutian Li
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Wei Wu
- Laboratory of Mesoscopic Chemistry and Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, P.R. China
| | - Qin Liu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Puyuan Wu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Li Xie
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Zhenshu Zhu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, P.R. China
| | - Mi Yang
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Xiaoping Qian
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Yin Ding
- Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, P.R. China
| | - Lixia Yu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
| | - Xiqun Jiang
- Laboratory of Mesoscopic Chemistry and Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, P.R. China
| | - Wenxian Guan
- Department of General Surgery, Drum-Tower Hospital, Medical School of Nanjing University, Nanjing, P.R. China
- * E-mail: (WG); (BL)
| | - Baorui Liu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, P.R. China
- * E-mail: (WG); (BL)
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28
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Ahmadinejad M, Aliepour A, Anbari K, Kaviani M, Ganjizadeh H, Nadri S, Foroutani N, Meysami M, Almasi V. Fine-Needle Aspiration, Touch Imprint, and Crush Preparation Cytology for Diagnosing Thyroid Malignancies in Thyroid Nodules. Indian J Surg 2013; 77:480-3. [PMID: 26730049 DOI: 10.1007/s12262-013-0882-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 01/28/2013] [Indexed: 10/27/2022] Open
Abstract
Several methods are used to evaluate the thyroid nodules. The aim of this study was to determine the sensitivity, specificity, false positive and negative rates, positive predictive value (PPV), and negative predictive value (NPV) of touch imprint, crush preparation, and fine-needle aspiration (FNA) methods. This cross-sectional study was done in Shohada-ye Ashayer University Hospital in Khorramabad. All the patients who underwent thyroid surgery due to thyroid nodules in this hospital between March and September 2011 were evaluated. The thyroid nodules of all the patients were evaluated by touch imprint, crush preparation, FNA, and permanent pathology methods. Finally, the results of the first three methods were compared with the result of permanent pathology method. The mean age of 104 patients who underwent thyroid surgery was 42.6 ± 11.9 years old. Based on permanent pathology, touch imprint, crush preparation, and FNA methods, 15.3, 6.25, 6.25, and 4.4 % of thyroid nodules were malignant, respectively. Sensitivity, specificity, false positive rate, false negative rate, PPV, and NPV of FNA biopsy were 62.5, 100, 0, 37.5, 100, and 95.3 %, respectively. Also, sensitivity, specificity, false positive rate, false negative rate, PPV, and NPV of touch imprint and crush preparation were equal and were 80, 100, 0, 20, 100, and 96.7 %, respectively. Using touch imprint and crush preparation in evaluation of thyroid nodules for rapid evaluation of these nodules in operating rooms seems to be logical, and it can prevent further surgeries.
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Affiliation(s)
- Mojtaba Ahmadinejad
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran ; Clinical Research Center, Shohada-ye Ashayer University Hospital, Enghelab Street, Khorramabad, Lorestan Iran
| | - Asghar Aliepour
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Khatereh Anbari
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mojhgan Kaviani
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hasan Ganjizadeh
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Sedigheh Nadri
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Niloufar Foroutani
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Masoumeh Meysami
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Vahid Almasi
- Clinical Research Center, Shohada-ye Ashayer University Hospital, Lorestan University of Medical Sciences, Khorramabad, Iran
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Levi J, Kothapalli SR, Bohndiek S, Yoon JK, Dragulescu-Andrasi A, Nielsen C, Tisma A, Bodapati S, Gowrishankar G, Yan X, Chan C, Starcevic D, Gambhir SS. Molecular photoacoustic imaging of follicular thyroid carcinoma. Clin Cancer Res 2013; 19:1494-502. [PMID: 23349314 DOI: 10.1158/1078-0432.ccr-12-3061] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
PURPOSE To evaluate the potential of targeted photoacoustic imaging as a noninvasive method for detection of follicular thyroid carcinoma. EXPERIMENTAL DESIGN We determined the presence and activity of two members of matrix metalloproteinase family (MMP), MMP-2 and MMP-9, suggested as biomarkers for malignant thyroid lesions, in FTC133 thyroid tumors subcutaneously implanted in nude mice. The imaging agent used to visualize tumors was MMP-activatable photoacoustic probe, Alexa750-CXeeeeXPLGLAGrrrrrXK-BHQ3. Cleavage of the MMP-activatable agent was imaged after intratumoral and intravenous injections in living mice optically, observing the increase in Alexa750 fluorescence, and photoacoustically, using a dual-wavelength imaging method. RESULTS Active forms of both MMP-2 and MMP-9 enzymes were found in FTC133 tumor homogenates, with MMP-9 detected in greater amounts. The molecular imaging agent was determined to be activated by both enzymes in vitro, with MMP-9 being more efficient in this regard. Both optical and photoacoustic imaging showed significantly higher signal in tumors of mice injected with the active agent than in tumors injected with the control, nonactivatable, agent. CONCLUSIONS With the combination of high spatial resolution and signal specificity, targeted photoacoustic imaging holds great promise as a noninvasive method for early diagnosis of follicular thyroid carcinomas.
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Affiliation(s)
- Jelena Levi
- Canary Center at Stanford for Cancer Early Detection, Stanford University, Palo Alto, California 94305, USA
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30
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Smallridge RC, Ain KB, Asa SL, Bible KC, Brierley JD, Burman KD, Kebebew E, Lee NY, Nikiforov YE, Rosenthal MS, Shah MH, Shaha AR, Tuttle RM. American Thyroid Association guidelines for management of patients with anaplastic thyroid cancer. Thyroid 2012; 22:1104-39. [PMID: 23130564 DOI: 10.1089/thy.2012.0302] [Citation(s) in RCA: 476] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Anaplastic thyroid cancer (ATC) is a rare but highly lethal form of thyroid cancer. Rapid evaluation and establishment of treatment goals are imperative for optimum patient management and require a multidisciplinary team approach. Here we present guidelines for the management of ATC. The development of these guidelines was supported by the American Thyroid Association (ATA), which requested the authors, members the ATA Taskforce for ATC, to independently develop guidelines for ATC. METHODS Relevant literature was reviewed, including serial PubMed searches supplemented with additional articles. The quality and strength of recommendations were adapted from the Clinical Guidelines Committee of the American College of Physicians, which in turn was developed by the Grading of Recommendations Assessment, Development and Evaluation workshop. RESULTS The guidelines include the diagnosis, initial evaluation, establishment of treatment goals, approaches to locoregional disease (surgery, radiotherapy, systemic therapy, supportive care during active therapy), approaches to advanced/metastatic disease, palliative care options, surveillance and long-term monitoring, and ethical issues including end of life. The guidelines include 65 recommendations. CONCLUSIONS These are the first comprehensive guidelines for ATC and provide recommendations for management of this extremely aggressive malignancy. Patients with stage IVA/IVB resectable disease have the best prognosis, particularly if a multimodal approach (surgery, radiation, systemic therapy) is used, and some stage IVB unresectable patients may respond to aggressive therapy. Patients with stage IVC disease should be considered for a clinical trial or hospice/palliative care, depending upon their preference.
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31
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Ulisse S, Baldini E, Sorrenti S, Barollo S, Prinzi N, Catania A, Nesca A, Gnessi L, Pelizzo MR, Mian C, De Vito C, Calvanese A, Palermo S, Persechino S, De Antoni E, D'Armiento M. In papillary thyroid carcinoma BRAFV600E is associated with increased expression of the urokinase plasminogen activator and its cognate receptor, but not with disease-free interval. Clin Endocrinol (Oxf) 2012; 77:780-6. [PMID: 22702340 DOI: 10.1111/j.1365-2265.2012.04465.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
CONTEXT It has been suggested that patients with papillary thyroid cancer (PTC) harbouring the BRAF(V600E) mutation have a worse prognosis. We showed in PTC that high levels of urokinase plasminogen activator (uPA) and its cognate receptor (uPAR) inversely correlate with disease-free interval (DFI). OBJECTIVES To investigate the effects of BRAF(V600E) on the expression of uPA and uPAR and to evaluate the prognostic relevance of BRAF(V600E) alone or in combination with uPA and uPAR. DESIGN/SETTING/PATIENTS/INTERVENTION: The case study included 91 patients with PTC. All patients underwent thyroidectomy and radioiodine therapy. Follow-up was available for 75 patients. MAIN OUTCOME MEASURES The BRAF(V600E) mutation was analysed by sequencing and mutant allele-specific PCR amplification; uPA and uPAR expression by quantitative RT-PCR. RESULTS BRAF(V600E) was found in 44 of the 91 patients and associated with older age, but not with high-risk clinicopathological features. Urokinase PA and uPAR mRNA levels were higher in tumour tissues by 9·51 ± 1·30 and 4·64 ± 0·44 fold, respectively, compared to normal matched tissues, being significantly higher in BRAF(V600E) -positive patients. In vitro induction of BRAF(V600E) in PCCL3 cells caused a significant increase in both uPA and uPAR mRNAs. Higher levels of uPA and uPAR correlated with lymph node metastases, TNM stage and disease recurrences. Kaplan-Meier and multivariate analyses demonstrated that uPA and uPAR were associated with shorter DFI, while the BRAF(V600E) was not. CONCLUSION In PTC, BRAF(V600E) induces uPA and uPAR expression. The latter, but not BRAF(V600E) , associates with advanced stages and shorter DFI. If confirmed in larger case studies, they may represent reliable prognostic markers for more accurate risk stratification and postoperative decision-making in patients with PTC.
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Affiliation(s)
- Salvatore Ulisse
- Department of Experimental Medicine, University of Rome, Rome, Italy
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mRNA expression in papillary and anaplastic thyroid carcinoma: molecular anatomy of a killing switch. PLoS One 2012; 7:e37807. [PMID: 23115614 PMCID: PMC3480355 DOI: 10.1371/journal.pone.0037807] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 04/24/2012] [Indexed: 12/25/2022] Open
Abstract
Anaplastic thyroid carcinoma (ATC) is the most lethal form of thyroid neoplasia and represents the end stage of thyroid tumor progression. No effective treatment exists so far. ATC frequently derive from papillary thyroid carcinomas (PTC), which have a good prognosis. In this study, we analyzed the mRNA expression profiles of 59 thyroid tumors (11 ATC and 48 PTC) by microarrays. ATC and PTC showed largely overlapping mRNA expression profiles with most genes regulated in all ATC being also regulated in several PTC. 43% of the probes regulated in all the PTC are similarly regulated in all ATC. Many genes modulations observed in PTC are amplified in ATC. This illustrates the fact that ATC mostly derived from PTC. A molecular signature of aggressiveness composed of 9 genes clearly separates the two tumors. Moreover, this study demonstrates gene regulations corresponding to the ATC or PTC phenotypes like inflammatory reaction, epithelial to mesenchymal transition (EMT) and invasion, high proliferation rate, dedifferentiation, calcification and fibrosis processes, high glucose metabolism and glycolysis, lactate generation and chemoresistance. The main qualitative differences between the two tumor types bear on the much stronger EMT, dedifferentiation and glycolytic phenotypes showed by the ATC.
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Zhang XG, Lu XF, Jiao XM, Chen B, Wu JX. PLK1 gene suppresses cell invasion of undifferentiated thyroid carcinoma through the inhibition of CD44v6, MMP-2 and MMP-9. Exp Ther Med 2012; 4:1005-1009. [PMID: 23226764 PMCID: PMC3494126 DOI: 10.3892/etm.2012.729] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Accepted: 07/02/2012] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to observe the regulatory action of the polo-like kinase 1 (PLK1) gene in the invasion of anaplastic thyroid carcinoma cells and investigate its mechanisms. The expression of the PLK1 protein in 36 patients with anaplastic thyroid carcinoma was detected by immunohistochemical staining. siRNA against PLK1 was designed, synthesized and transfected into ARO cells. The effects of PLK1 siRNA on cell invasion were detected by a soft agar colony formation assay and a Transwell chamber assay. The corresponding protein was detected using western blot analysis. The expression of PLK1 in anaplastic thyroid carcinoma samples (67.5±10.6%) was significantly higher compared to that in cancer-adjacent samples (0.65%±0.12%; P<0.01). The expression of PLK1 correlated with clinical stage, lymph node metastasis and prognosis of anaplastic thyroid. The number of cell clones was reduced in a dose-dependent manner with increasing levels of siRNA and the number of cells permeating through the filter membrane decreased following transfection with siRNA. The inhibition of PLK1 caused a significant decrease in CD44v6, matrix metalloproteinase (MMP)-2 and MMP-9 (0.36±0.08, 0.12±0.03, 0.25±0.06, respectively) compared to the non-transfected group (1.15±0.18, 1.21±0.20, 1.25±0.21, respectively; P<0.01). In conclusion, the expression of PLK1 was found to be increased in anaplastic thyroid carcinoma and was correlated with clinical stage, lymph node metastasis and prognosis. Additionaly, PLK1 siRNA was found to inhibit the invasion of anaplastic thyroid carcinoma cells. Therefore, CD44v6, MMP-2 and MMP-9 are likely to be involved in the regulation of cell invasion induced by PLK1.
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Affiliation(s)
- Xing-Guang Zhang
- Department of Endocrinology, The Military General Hospital of Beijing PLA, Beijing 100700, P.R. China
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Li Y, Wu T, Zhang B, Yao Y, Yin G. Matrix metalloproteinase-9 is a prognostic marker for patients with cervical cancer. Med Oncol 2012; 29:3394-9. [DOI: 10.1007/s12032-012-0283-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 06/12/2012] [Indexed: 01/04/2023]
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Diagnostic value of neutrophil gelatinase-associated lipocalin (NGAL) immunoexpression in follicular-patterned lesions of the thyroid gland. Virchows Arch 2012; 460:319-25. [DOI: 10.1007/s00428-012-1208-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 01/13/2012] [Accepted: 01/31/2012] [Indexed: 10/28/2022]
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Down-regulation of matrix metalloproteinase-7 inhibits metastasis of human anaplastic thyroid cancer cell line. Clin Exp Metastasis 2011; 29:71-82. [PMID: 22042554 DOI: 10.1007/s10585-011-9430-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 10/07/2011] [Indexed: 12/26/2022]
Abstract
Epigenetic drugs such as histone deacetylase inhibitors (HDACIs) possess anticancer properties due to its ability to regulate genes associated with tumor growth, differentiation, apoptosis and metastasis. In addition to its apoptotic effect, phenylbutyrate (PB), a carboxylic acid HDACI, inhibited an anaplastic (ATC) thyroid cancer cell line ARO from penetrating a matrigel coated transwell with concomitant suppression of a metastasis-associated gene, matrix metalloproteinase-7 (MMP-7) and stimulation of a transformation suppressor protein, reversion-inducing- cysteine-rich protein with Kazal motifs without affecting MMP-2 expression levels. Direct evidence suggesting MMP-7 down-regulated cancer metastasis came from the observation of a decreased pulmonary metastasis in SCID mice xeno-transplanted with MMP-7-knocked-down ARO cells. In addition, H-89, a protein kinase A inhibitor, remarkably restored the down-regulaed MMP-7 level treated by PB. Thus, the suppressive effect of PB on MMP-7 was partially carried out through H3 phosphoacetylation. To conclude, our findings suggest PB inhibits MMP-7 expression epigenetically through phosphoacetylation of histone proteins, and thereby, reduced invasive ability of an ATC thyroid cancer cell line.
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Kim SJ, Shin JY, Lee KD, Bae YK, Choi IJ, Park SH, Chun KH. Galectin-3 facilitates cell motility in gastric cancer by up-regulating protease-activated receptor-1 (PAR-1) and matrix metalloproteinase-1 (MMP-1). PLoS One 2011; 6:e25103. [PMID: 21966428 PMCID: PMC3178590 DOI: 10.1371/journal.pone.0025103] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 08/23/2011] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Galectin-3 is known to regulate cancer metastasis. However, the underlying mechanism has not been defined. Through the DNA microarray studies after galectin-3 silencing, we demonstrated here that galectin-3 plays a key role in up-regulating the expressions of protease-activated receptor-1 (PAR-1) and matrix metalloproteinase-1 (MMP-1) PAR-1 thereby promoting gastric cancer metastasis. METHODOLOGY/PRINCIPAL FINDINGS We examined the expression levels of Galectin-3, PAR-1, and MMP-1 in gastric cancer patient tissues and also the effects of silencing these proteins with specific siRNAs and of over-expressing them using specific lenti-viral constructs. We also employed zebrafish embryo model for analysis of in vivo gastric cancer cell invasion. These studies demonstrated that: a) galectin-3 silencing decreases the expression of PAR-1. b) galectin-3 over-expression increases cell migration and invasion and this increase can be reversed by PAR-1 silencing, indicating that galectin-3 increases cell migration and invasion via PAR-1 up-regulation. c) galectin-3 directly interacts with AP-1 transcriptional factor, and this complex binds to PAR-1 promoter and drives PAR-1 transcription. d) galectin-3 also amplifies phospho-paxillin, a PAR-1 downstream target, by increasing MMP-1 expression. MMP-1 silencing blocks phospho-paxillin amplification and cell invasion caused by galectin-3 over-expression. e) Silencing of either galectin-3, PAR-1 or MMP-1 significantly reduced cell migration into the vessels in zebrafish embryo model. f) Galectin-3, PAR-1, and MMP-1 are highly expressed and co-localized in malignant tissues from gastric cancer patients. CONCLUSIONS/SIGNIFICANCE Galectin-3 plays the key role of activating cell surface receptor through production of protease and boosts gastric cancer metastasis. Galectin-3 has the potential to serve as a useful pharmacological target for prevention of gastric cancer metastasis.
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Affiliation(s)
- Seok-Jun Kim
- Gastric Cancer Branch, Division of Translational and Clinical Research I, National Cancer Center Research Institute and Hospital, Jungbalsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
- Department of Biological Science, Sungkyunkwan University, Jangan-gu, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Ji-Young Shin
- Gastric Cancer Branch, Division of Translational and Clinical Research I, National Cancer Center Research Institute and Hospital, Jungbalsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Kang-Duck Lee
- Gastric Cancer Branch, Division of Translational and Clinical Research I, National Cancer Center Research Institute and Hospital, Jungbalsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Young-Ki Bae
- Cancer Experimental Recourses Branch, Division of Cancer Biology, National Cancer Center, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Il-Ju Choi
- Gastric Cancer Branch, Division of Translational and Clinical Research I, National Cancer Center Research Institute and Hospital, Jungbalsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Seok Hee Park
- Department of Biological Science, Sungkyunkwan University, Jangan-gu, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Kyung-Hee Chun
- Gastric Cancer Branch, Division of Translational and Clinical Research I, National Cancer Center Research Institute and Hospital, Jungbalsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
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Brauckhoff M, Dralle H. [Extrathyroidal thyroid cancer : results of tracheal shaving and tracheal resection]. Chirurg 2011; 82:134-40. [PMID: 21153528 DOI: 10.1007/s00104-010-1975-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Extrathyroidal thyroid cancer invading the laryngotracheal system (UICC stage pT4a) represents a progressive process of infiltration of the tracheal wall layers from the outer to the inner parts of the trachea. These tumors usually present with high proliferation activity correlating with a reduced long-term prognosis. In contrast to intraluminal manifestation requiring complete wall resection, in cases of non-transmural invasion, complete tumor removal can be sometimes achieved by extraluminal tangential resection (shaving). Tangential resections, however, are associated with a higher frequency of microscopically invaded resection margins (R1 resection rate >40%). The available comparative studies (all retrospective, maximum EBM level 3) analyzing oncological outcome show inconsistent results. In more recently published studies, however, complete wall resection in well-differentiated thyroid cancer with tracheal invasion only was found to be associated with longer recurrence-free and tumor-specific survival when compared to shaving. Deep larynx invasion is associated with reduced long-term prognosis when compared to invasion of the trachea. Salvage resections should therefore be performed in selected cases only.
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Affiliation(s)
- M Brauckhoff
- Department of Surgical Sciences, University of Bergen, Norway.
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Pettersen JS, Fuentes-Duculan J, Suárez-Fariñas M, Pierson KC, Pitts-Kiefer A, Fan L, Belkin DA, Wang CQ, Bhuvanendran S, Johnson-Huang LM, Bluth MJ, Krueger JG, Lowes MA, Carucci JA. Tumor-associated macrophages in the cutaneous SCC microenvironment are heterogeneously activated. J Invest Dermatol 2011; 131:1322-30. [PMID: 21307877 PMCID: PMC3334331 DOI: 10.103/jid.2011.9] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Tumor-associated macrophages (TAMs) may have an important role in tumor immunity. We studied the activation state of TAMs in cutaneous SCC, the second most common human cancer. CD163 was identified as a more abundant, sensitive, and accurate marker of TAMs when compared with CD68. CD163(+) TAMs produced protumoral factors, matrix metalloproteinases 9 and 11 (MMP9 and MMP11), at the gene and protein levels. Gene set enrichment analysis (GSEA) was used to evaluate M1 and M2 macrophage gene sets in the SCC genes and to identify candidate genes in order to phenotypically characterize TAMs. There was coexpression of CD163 and alternatively activated "M2" markers, CD209 and CCL18 (chemokine (C-C motif) ligand 18). There was enrichment for classically activated "M1" genes in SCC, which was confirmed in situ by colocalization of CD163 and phosphorylated STAT1 (signal transducer and activator of transcription 1), IL-23p19, IL-12/IL-23p40, and CD127. Also, a subset of TAMs in SCC was bi-activated as CD163(+) cells expressed markers for both M1 and M2, shown by triple-label immunofluorescence. These data support heterogeneous activation states of TAMs in SCC, and suggest that a dynamic model of macrophage activation would be more useful to characterize TAMs.
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Affiliation(s)
- Julia S. Pettersen
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY
| | | | - Mayte Suárez-Fariñas
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
- The Center for Clinical and Translational Science, The Rockefeller University, New York, NY
| | - Katherine C. Pierson
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | | | - Linda Fan
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY
| | - Daniel A. Belkin
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY
| | - Claire Q.F. Wang
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | | | | | - Mark J. Bluth
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY
| | - James G. Krueger
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | - Michelle A. Lowes
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | - John A. Carucci
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY
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Tumor-Associated Macrophages in the Cutaneous SCC Microenvironment Are Heterogeneously Activated. J Invest Dermatol 2011. [DOI: 10.1038/jid.2011.9] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Liu L, Wu J, Wu C, Wang Y, Zhong R, Zhang X, Tan W, Nie S, Miao X, Lin D. A functional polymorphism (-1607 1G→2G) in the matrix metalloproteinase-1 promoter is associated with development and progression of lung cancer. Cancer 2011; 117:5172-81. [PMID: 21523769 DOI: 10.1002/cncr.26154] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 02/09/2011] [Accepted: 02/28/2011] [Indexed: 01/23/2023]
Abstract
BACKGROUND Matrix metalloproteinase-1 (MMP-1), an interstitial collagenase, plays an important role in the breakdown of extracellular matrix and mediates pathways of apoptosis, angiogenesis, and immunity. It has been demonstrated that the overexpression of this enzyme is associated with tumor initiation, invasion, and metastasis. The -1607 single guanine (1G)-to-2G polymorphism (reference single nucleotide polymorphism 1799750) in the MMP-1 promoter region creates an E26 (Ets) binding site and results in transcriptional up-regulation. The authors hypothesized that this MMP-1 polymorphism may affect susceptibility to the development and progression of cancer. METHODS The authors investigated their hypothesis in a lung cancer case-control study. Genotypes were analyzed in 825 patients with lung cancer and in 825 controls. Odds ratios were estimated by multivariate logistic regression, and a meta-analysis also was conducted to verify the findings. RESULTS Patients who had the MMP-1 2G/2G genotype had a 1.71-fold increased risk of lung cancer (95% confidence interval, 1.22-fold to 2.41-fold increased risk) compared with patients who had the 1G/1G genotype. Moreover, when patients with stage I disease were considered as a reference group, patients who carried the 2G/2G genotype had a significantly increased risk of invasive disease (stage III-IV: odds ratio, 2.02; 95% confidence interval, 1.09-3.74) compared with patients who had the 1G/1G genotype. Pooled results from the meta-analysis confirmed that those who had the 2G/2G genotype had a significantly increased risk of lung cancer compared with those who had the 1G/1G genotype, consistent with the case-control findings. CONCLUSIONS The current study demonstrated that the MMP-1 -1607 1G-to-2G polymorphism is associated with susceptibility to both development and progression of lung cancer.
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Affiliation(s)
- Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Ulisse S, Baldini E, Sorrenti S, Barollo S, Gnessi L, Catania A, Pellizzo MR, Nardi F, Mian C, De Antoni E, D'Armiento M, Frati L. High expression of the urokinase plasminogen activator and its cognate receptor associates with advanced stages and reduced disease-free interval in papillary thyroid carcinoma. J Clin Endocrinol Metab 2011; 96:504-8. [PMID: 21106716 DOI: 10.1210/jc.2010-1688] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT The urokinase plasminogen activating system is implicated in neoplastic progression, and high tissue levels of urokinase plasminogen activating system components correlate with poor prognosis in various human cancers. OBJECTIVE The objective of the study was to investigate the prognostic relevance of the urokinase plasminogen activator (uPA), its cognate receptor (uPAR), and the plasminogen activator inhibitor 1 (PAI-1) in human papillary thyroid cancer (PTC). DESIGN The expression of uPA, uPAR, and PAI-1 genes was analyzed in PTC and normal matched tissues by quantitative RT-PCR. The case study consisted of 99 patients (21 males and 78 females) affected by PTC including 77 classical, 15 follicular, four tall cell, and three oncocytic variants. Forty-one patients had lymph node metastases at the time of diagnosis. All the patients underwent thyroidectomy and radioiodine therapy followed by thyroid hormone replacement therapy. Follow-up data were available for 76 patients up to 64 months. RESULTS The uPA, uPAR, and PAI-1 mRNA levels were significantly higher in PTC compared with normal matched tissues by 9.63 ± 1,29-, 4.82 ± 0.45-, and 5.64 ± 0.71-fold, respectively. The increased expression of uPA and uPAR correlated statistically with advanced pT and N status. The uPA was also significantly associated with advanced tumor node metastasis stages. The Kaplan-Meier analysis showed a significant association of uPA and uPAR levels with reduced patient disease-free interval (DFI), and this association was stronger in stage I patients. CONCLUSION The study demonstrated that in PTC the increased gene expression of uPA and uPAR is associated with tumor invasiveness, advanced stages, and shorter DFI, suggesting their prognostic relevance. These observations warrant further investigation in larger patient populations with longer follow-up.
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Affiliation(s)
- Salvatore Ulisse
- Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Roma, Italy.
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He JR, Qin H, Ren ZF, Cui C, Zhang Y, Ranatunga D, Zeng YX, Jia WH. MMP-9 expression in peripheral blood mononuclear cells and the association with clinicopathological features and prognosis of nasopharyngeal carcinoma. Clin Chem Lab Med 2011; 49:705-10. [DOI: 10.1515/cclm.2011.095] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Abstract
PURPOSE OF REVIEW For de-novo thyroid hormone synthesis ex vivo, thyroid follicular cells require a serum-free medium supplying nutrients, iodide, thyroid-stimulating hormone and insulin-like growth factor I (IGF-I) (or insulin). Under these conditions, T3 and T4 are secreted but so are other factors such as growth factors, plasminogen activators, their inhibitors known as serpins, and so on. What is the function of these factors? Do thyroid cells respond to them or are these paracrine/endocrine factors? The purpose of this review is to highlight the current developments in the identification and role of the signalling pathways that regulate thyroid growth and function and the putative role of endogenous thyroid proteases in regulating this. RECENT FINDINGS The roles of the mitogen-activated protein kinases and phosphoinositol 3 kinases and integrins in mediating growth and function in thyroid cancer cells and the roles of plasminogen activators, their receptors and the downstream signalling pathways they modulate have been developed. Discoveries of novel proteases, expressed in thyroid cancers, may be useful in diagnosis. SUMMARY The signalling pathways regulating thyroid activity are examined and the roles of follicular cell products in maintaining thyroid homeostasis evaluated. The possibility that thyroid cell products other than T3 and T4 may circulate and have extrathyroidal effects is proposed.
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Affiliation(s)
- Margaret C Eggo
- School of Clinical and Experimental Medicine, The University of Birmingham, Birmingham, UK.
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Nowicki TS, Kummer NT, Iacob C, Suslina N, Schaefer S, Schantz S, Shin E, Moscatello AL, Tiwari RK, Geliebter J. Inhibition of uPAR and uPA reduces invasion in papillary thyroid carcinoma cells. Laryngoscope 2010; 120:1383-90. [PMID: 20578104 DOI: 10.1002/lary.20915] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES/HYPOTHESIS We analyzed the expression of urokinase plasminogen activator (uPA) and its receptor (uPAR) in papillary thyroid carcinoma (PTC) and normal thyroid tissue and examined in vitro how uPA and uPAR contribute to an invasive/metastatic phenotype, and the functional consequences of inhibiting this system. STUDY DESIGN Retrospective chart review of PTC patients, followed by prospective study using previously obtained patient tissue and PTC cellular models. METHODS uPA and uPAR RNA and protein levels were analyzed in PTC patient tissue samples, PTC and normal thyroid tissue culture cells, and conditioned media (CM) using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and/or Western blotting. The plasminogen-activating ability of CM was examined using dark-quenched casein fluorimetry and casein-plasminogen gel zymography. The invasive potentials of the PTC and normal thyroid epithelial cell lines were assessed using an in vitro cellular invasion/migration system. RESULTS uPA and uPAR RNA and protein levels were increased in PTC patient samples and PTC cells relative to controls. uPA and uPAR RNA were also significantly higher in patients with metastatic disease. Casein-plasminogen zymography and Western blotting demonstrated increased active uPA secreted by PTC cells compared with normal thyroid cells. Fluorimetric assays revealed that the PTC cells' CM was able to activate plasminogen, resulting in measurable casein hydrolysis. This casein hydrolysis was prevented by the addition of several specific uPA inhibitors. Finally, the in vitro invasion phenotypes of PTC cells were augmented by the addition of plasminogen, and this augmentation was reversed by inhibitory anti-uPA and anti-uPAR antibodies. CONCLUSIONS These data provide new functional evidence of the uPA/uPAR system's role in PTC invasion/metastasis and demonstrate the attractiveness of uPA and uPAR as molecular biomarkers and therapeutic targets.
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Affiliation(s)
- Theodore S Nowicki
- Department of Microbiology and Immunology, New York Medical College, Valhalla, New York 10595, USA
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Advances in cellular therapy for the treatment of thyroid cancer. JOURNAL OF ONCOLOGY 2010; 2010:179491. [PMID: 20671939 PMCID: PMC2910457 DOI: 10.1155/2010/179491] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 05/06/2010] [Indexed: 12/21/2022]
Abstract
Up to now, there are no curative therapies available for the subset of metastasized undifferentiated/anaplastic thyroid carcinomas. This review describes the possible use of immunocompetent cells which may help to restore the antitumor immune recognition for treating an existing tumor or preventing its recurrence. The most prominent experimental strategy is the use of dendritic cells (DCs) which are highly potent in presenting tumor antigens. Activated DCs subsequently migrate to draining lymph nodes where they present antigens to naïve lymphocytes and induce cytotoxic T cells (CTL). Alternatively to DC therapy, adoptive cell transfer may be performed by either using natural killer cells or ex vivo maturated CTLs. Within this review article we will focus on recent advances in the understanding of anti-tumor immune responses, for example, in thyroid carcinomas including the advances which have been made for the identification of potential tumor antigens in thyroid malignancies.
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Differential matrix metalloproteinase levels in adenocarcinoma and squamous cell carcinoma of the lung. J Thorac Cardiovasc Surg 2010; 139:984-90; discussion 990. [PMID: 20304142 DOI: 10.1016/j.jtcvs.2009.12.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Revised: 11/05/2009] [Accepted: 12/12/2009] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The matrix metalloproteinases (MMPs) have been implicated in the aggressive course of non-small cell lung cancer (NSCLC). However, there are a large number of MMP subtypes with diverse proteolytic substrates and different induction pathways. This study tested the hypothesis that a differential MMP profile would exist between NSCLC and normal lung and that MMP patterns would differ between NSCLC histologic types. METHODS NSCLC samples and remote normal samples were obtained from patients with stage I or II NSCLC with either squamous cell (n = 22) or adenocarcinoma (n = 19) histologic characteristics. Absolute concentrations for each of the MMP subclasses were determined by a calibrated and validated multiplex suspension array: collagenases (MMP-1, -8, and -13), gelatinases (MMP-2 and -9), lysins (MMP-2 and -7), and elastase (MMP-12). RESULTS Overall, MMP levels were significantly increased in NSCLC compared with normal. For example, MMP-1 and MMP-7 increased by approximately 10-fold in NSCLC (P < .05). Moreover, a different MMP portfolio was observed between NSCLC histologic types. For example MMP-1, -8, -9, and -12 increased by more than 4-fold in squamous cell versus adenocarcinoma (P < .05). In those patients who had recurrence within 3 years of resection, 3-fold higher levels of MMP-8 and -9 were observed (P < .05). CONCLUSION Increased levels of a number of MMP types occur with NSCLC, but the MMP profile was distinctly different between histologic types and in those patients with recurrence. These different MMP profiles may be important in the mechanistic basis for the natural history of different NSCLC types, as well as identifying potential prognostic and therapeutic targets.
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Abstract
The urokinase receptor (u-PAR) is one of the most critical molecules in migration, invasion, intravasation, and metastasis and is also a key regulator between tumour cell proliferation and dormancy. It is overexpressed in most human solid cancer types, which has led to increasing translational and clinical research on this molecule. The current review discusses in particular the in vivo, translational, and putative clinical relevance of u-PAR in the context of this latest development. It outlines how u-PAR is already being used and might increasingly be applied as a diagnostic tool, for example, in distinguishing benign from malignant neoplasms, as a molecular marker for predicting clinical response to chemotherapy or novel targeted therapy, and finally as a promising tool for the development of novel cancer therapeutics.
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Rasheed SAK, Efferth T, Asangani IA, Allgayer H. First evidence that the antimalarial drug artesunate inhibits invasion and in vivo metastasis in lung cancer by targeting essential extracellular proteases. Int J Cancer 2010; 127:1475-85. [DOI: 10.1002/ijc.25315] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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Alfano RW, Leppla SH, Liu S, Bugge TH, Ortiz JM, Lairmore TC, Duesbery NS, Mitchell IC, Nwariaku F, Frankel AE. Inhibition of tumor angiogenesis by the matrix metalloproteinase-activated anthrax lethal toxin in an orthotopic model of anaplastic thyroid carcinoma. Mol Cancer Ther 2010; 9:190-201. [PMID: 20053778 DOI: 10.1158/1535-7163.mct-09-0694] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Patients with anaplastic thyroid carcinoma (ATC) typically succumb to their disease months after diagnosis despite aggressive therapy. A large percentage of ATCs have been shown to harbor the V600E B-Raf point mutation, leading to the constitutive activation of the mitogen-activated protein kinase pathway. ATC invasion, metastasis, and angiogenesis are in part dependent on the gelatinase class of matrix metalloproteinases (MMP). The explicit targeting of these two tumor markers may provide a novel therapeutic strategy for the treatment of ATC. The MMP-activated anthrax lethal toxin (LeTx), a novel recombinant protein toxin combination, shows potent mitogen-activated protein kinase pathway inhibition in gelatinase-expressing V600E B-Raf tumor cells in vitro. However, preliminary in vivo studies showed that the MMP-activated LeTx also exhibited dramatic antitumor activity against xenografts that did not show significant antiproliferative responses to the LeTx in vitro. Here, we show that the MMP-activated LeTx inhibits orthotopic ATC xenograft progression in both toxin-sensitive and toxin-resistant ATC cells via reduced endothelial cell recruitment and subsequent tumor vascularization. This in turn translates to an improved long-term survival that is comparable with that produced by the multikinase inhibitor sorafenib. Our results also indicate that therapy with the MMP-activated LeTx is extremely effective against advanced tumors with well-established vascular networks. Taken together, these results suggest that the MMP-activated LeTx-mediated endothelial cell targeting is the primary in vivo antitumor mechanism of this novel toxin. Therefore, the MMP-activated LeTx could be used not only in the clinical management of V600E B-Raf ATC but potentially in any solid tumor.
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Affiliation(s)
- Randall W Alfano
- Cancer Research Institute, Scott and White Memorial Hospital, Temple, Texas 76502, USA
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