Objective: To investigate the expression of mammary serine proteinase inhibitor(Maspin) in patients with oral squamous cell carcinoma and its relationship with clinicopathological features.
Methods: The Maspin protein expression was examined in 45 patients with oral squamous cell carcinoma and in non-malignant oral epithelia by immunohistochemical staining. The relationship between the Maspin protein expression and the clinicopathological parameters was statistically analyzed.
Results: The Maspin protein expression in the cancerous tissues of oral squamous cell carcinoma was lower than that in the non-malignant oral epithelia (P = 0.001). Negative correlation was found between the Maspin protein expression in cancerous tissue and the status of lymph node metastasis (P = 0.038). Positive Maspin protein expression indicated negative lymph node metastasis, and negative correlation was also found between the Maspin protein expression and the postoperative metastasis (P = 0.004). Positive correlation was found between the Maspin expression and the patients' survival rate (P = 0.014), patients with positive Maspin protein expression having higher survival rate than those with negative Maspin expression.
Conclusions: Maspin might be useful as a potential prognostic marker for oral squamous cell carcinoma.
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Cancers (Basel)
August 2024
Department of Pathology, Faculty of Medicine, Tottori University, Yonago 683-8505, Japan.
Mammary serine protease inhibitor (maspin) is a tumor suppressor protein downregulated during carcinogenesis and cancer progression; cytoplasmic-only maspin expression is an independent, unfavorable prognostic indicator in patients with lung squamous cell carcinoma (LUSC). We hypothesized that the cytoplasmic-only localization of maspin has tumor-promoting functions in LUSC. The subcellular localization of maspin and the invasive capability of LUSC cell lines were investigated using RNA sequencing (RNA-seq), Western blotting, and siRNA transfection.
View Article and Find Full Text PDFClin Proteomics
August 2024
Department of Dermatology, Peking Union Medical College Hospital, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Dongcheng District, Beijing, 100730, China.
Clin Transl Med
August 2024
Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.
Protein Pept Lett
October 2024
Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.
Background: Colorectal cancer remains to be the third leading cause of cancer mortality rates. Despite the diverse effects of the miRNA cluster located in of 8q24.21 across various tumors, the specific biological function in colorectal cancer has not been clarified.
View Article and Find Full Text PDFSci Rep
July 2024
Center for Translational Research in Oncology, Cancer Institute of the State of São Paulo (ICESP), Clinical Hospital Faculty of Medicine, University of São Paulo (HCFMUSP), São Paulo, SP, 01246-000, Brazil.
The search for prognostic markers in breast cancer has bumped into a typical feature of these tumors, intra and intertumoral heterogeneity. Changes in the expression profile, localization of these proteins or shedding to the surrounding stroma can be useful in the search for new markers. In this context, classification by molecular subtypes can bring perspectives for both diagnosis and screening for appropriate treatments.
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