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Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Introduction Thyroid cancer is one of the most common malignant tumors, and papillary thyroid carcinoma (PTC) is the most common histologic type ( 1 ). Surgery remains the most effective treatment for thyroid cancer. However, postoperative
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Background: Collagen type VIII α 1 chain (COL8A1), a collagen type VIII protein, has been suggested to exert various functions in progression of multiple cancers. However, the effect of COL8A1 in papillary thyroid cancer (PTC) has not been elucidated.
Methods: The Cancer Genome Atlas (TCGA) databases were applied to investigate the COL8A1 expression and its clinical significance in PTC. The COL8A1 expression level was further validated using Gene Expression Omnibus (GEO) data and clinical paired PTC tissues. Additionally, Kaplan-Meier curve was used to analyze the prognosis. The cell migrative and invasive abilities were evaluated by wound healing assay and Transwell assay. CCK8 assays were used to evaluate proliferation of PTC cells. Western blotting was conducted to explore the potential mechanisms involved in the pro-tumor role of COL8A1. The correlation between immune cell infiltration and COL8A1 was analyzed using Tumor Immune Estimation Resource (TIMER) database and the single-sample GSEA (ssGSEA) method.
Results: We found that COL8A1 was upregulated in PTC (P<0.05). High COL8A1 expression level was significantly associated with advanced T stage (P<0.01), N stage (P<0.001) and poor prognosis (P=0.0142) in PTC. Furthermore, cell migration and invasion were significantly reduced following COL8A1 knockdown (P<0.001). Mechanistic studies demonstrated that the epithelial-to-mesenchymal transition (EMT) related proteins (FN1, MMP9, MMP7, ZEB2 and Twist1) and phosphorylation of AKT and ERK were obviously down-regulated after COL8A1 knockdown (P<0.01). Moreover, COL8A1 expression was correlated with immune cell infiltration.
Conclusion: Our study demonstrates that COL8A1 may function as an oncogene and a potential prognostic biomarker for PTC patients.
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Introduction Poorly differentiated thyroid carcinoma (PDTC) represents an aggressive variant of thyroid cancer that predominantly arises from the differentiated variants of papillary and follicular thyroid carcinoma (PTC and FTC, respectively
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Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
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Hospital Santa Rita de Cássia, Vitória, Espírito Santo, Brazil
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Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
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Hospital Geral de Fortaleza, Fortaleza, Ceará, Brazil
Universidade de Fortaleza, Fortaleza, Ceará, Brazil
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Faculdade de Ciências da Saúde de Barretos Dr. Paulo Prata, Barretos, São Paulo, Brazil
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Escola Fiocruz de Governo, Fundação Oswaldo Cruz and Ministério da Saúde, Brasília, Distrito Federal, Brazil
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Vall d’Hebron Institute of Oncology (VHIO), CIBERONC, Barcelona, Spain
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Instituto do Câncer do Estado de São Paulo, São Paulo, São Paulo, Brazil
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Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
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Brazilian centers involved in the diagnosis and treatment of thyroid cancer. Declaration of interest The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported
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differentiated thyroid cancer: the American Thyroid Association guidelines task force on thyroid nodules and differentiated thyroid cancer . Thyroid 2016 26 1 – 133 . ( https://doi.org/10.1089/thy.2015.0020 ) 25 McWade MA Sanders ME Broome JT Solorzano
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Department of Pathological Cytology and Anatomy, Foch Hospital, Paris, France
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, which was performed under an approval of the Ethics Committee of the Centre Hospitalier Universitaire de Liège. Immunohistochemistry AIP immunostaining of paraffin preserved tumor tissue (pituitary in Patient 2 and thyroid cancer in the sister of
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of thyroid cancer ( 3 ). It represents 1–2% of clinically recognized thyroid malignancies but it accounts for more than half of the deaths for thyroid cancer. Five-year survival rate for ATC patients is estimated below 1% and about 50% of ATC patients
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( 8 , 9 ). Moreover, several authors have described a rate of thyroid cancer in patients with PHPT that appears to be higher than the general population ( 4 , 10 , 11 , 12 , 13 , 14 , 15 ). A review of data from nine studies, including a total
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Aix-Marseille Université, Faculté de Médecine, Marseille, France
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Aix-Marseille Université, Faculté de Médecine, Marseille, France
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remained ill-defined. A recent meta-analysis has revisited the possibility of such an association and has confirmed the existence of, and quantified the increased co-occurrence of breast and differentiated thyroid cancer (DTC) ( 1 ). Both cancers occur
Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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clinical practice. NGS reveals the comprehensive genetic background of a certain tumor, thus assisting tumor diagnosis and treatment. Thyroid cancer is the most common endocrine malignancy with an increasing incidence ( 2 ) in recent decades. Exciting