Background: Recent studies have shown a strong relationship between the expression of osteopontin and oral carcinogenesis. Osteopontin (OPN) has been shown to play a major role in regulating the aggressiveness of cancer cells and promote tumor growth. Odontogenic cysts are an essential aspect of oral and maxillofacial pathology. They are relatively frequent lesions with different clinical behavior. Some of them may have a proliferative pattern of growth and neoplastic nature. Evaluation of osteopontin expression with Ki-67 index may help examine clinical behavior and recurrence of oral squamous cell cancer and radicular cyst patients.
Methods: A total of 44 oral cavity cancer cases and 21 cysts samples were analyzed by immunohistochemical staining. Data used for analysis were derived from medical records. The following information was obtained from all patients' medical records: survival, age, sex, lymph node status, tumor size, and location, as well as grade and histologic type of tumor. Expression status of OPN and Ki-67 was statistically assessed.
Results: Our data demonstrated that for summary immunoreactive scores of OPN and Ki-67 expressions in OSCC RC patients statistical significance was found for both markers' between OSCC and RC groups. Moreover, osteopontin is significantly higher expressed in larger OSCC tumors.
Conclusions: In conclusion, the role of OPN expression both in oral squamous cancer cells and radicular cyst and possible correlation with demographic and clinicopathological features remain undetermined in some aspects, further high-powered studies to develop a more standardized assessment of Ki-67 and osteopontin expression in OSCC and are needed.
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http://dx.doi.org/10.21037/tcr.2019.12.08 | DOI Listing |
J Exp Clin Cancer Res
December 2024
Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Background: Head and neck squamous cell carcinoma (HNSCC) is a very aggressive disease characterized by a heterogeneous tumor immune microenvironment (TIME). Tumor-associated macrophages (TAMs) constitute the major innate immune population in the TIME where they facilitate crucial regulatory processes that participate in malignant tumor progression. SPP1 + macrophages (SPP1 + Macs) are found in many cancers, but their effects on HNSCC remain unknown.
View Article and Find Full Text PDFJ Biomed Mater Res A
January 2025
Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Geesthacht, Germany.
Osteoarthritis (OA) is a significant condition that profoundly impacts synovial joints, including cartilage and subchondral bone plate. Biomaterials that can impede OA progression are a promising alternative or supplement to anti-inflammatory and surgical interventions. Magnesium (Mg) alloys known for bone regeneration potential were assessed in the form of Mg microparticles regarding their impact on tissue regeneration and prevention of OA progression.
View Article and Find Full Text PDFTissue Eng Part A
December 2024
Department of Orthopedics, Municipal Hospital Affiliated to Taizhou University, Taizhou City, China.
Senescence and osteogenic differentiation potential loss limited bone nonunion treatment effects of bone marrow-derived mesenchymal stem cells (BMSCs). MiR-100-5p/Lysine(K)-specific demethylase 6B (KDM6B) can inhibit osteogenesis, but their effects on bone union remain unclear. This study aims to investigate the effects of miR-100-5p/KDM6B on osteogenic differentiation and bone defects.
View Article and Find Full Text PDFJ Agric Food Chem
December 2024
School of Food Science and Engineering, Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China.
In this study, we investigated the effects of infant fecal fermentation-derived metabolites of digested osteopontin (OPN) and 2'-fucosyllactose (2'-FL), either individually or in combination, on intestinal barrier function using a Caco-2/HT-29 coculture cell model. Our results suggested that the OPN/2'-FL (1:36-1:3) cofermentation metabolites improved epithelial barrier integrity by supporting the mRNA and protein expression of occludin, claudin-1, claudin-2, ZO-1, and ZO-2. All of the OPN/2'-FL treatments decreased the production of IL-1β, IL-6, and TNF-α, while the OPN/2'-FL ratio increased IL-10 production by inhibiting activation of the MyD88/IκB-α/NF-κB signaling pathway.
View Article and Find Full Text PDFExp Oncol
December 2024
R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
Background: The development of breast cancer (BCa) is largely determined by the characteristics of the tumor microenvironment (ТМЕ), which undergoes significant changes during the progression of the disease. Mast cells (MCs) are among the least studied components of the TME. The aim of the work was to investigate the relationship between the density of infiltration and the functional activity of MCs with indicators of osteopontin (OP) expression in BCa tissue.
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