Unlabelled: Human HOX genes encode transcription factors that act as master regulators of embryonic development. They are important in several processes such as cellular morphogenesis and differentiation. The HOXB5 gene in particular has been reported in some types of neoplasm, but not in oral cancer.
Objective: The present study investigated the expression of HOXB5 in oral squamous cell carcinoma (SCC) and in non-tumoral adjacent tissues, focusing on verifying its possible role as a broad tumor-associated gene and its association with histopathological and clinical (TNM) characteristics.
Material And Methods: RT-PCR was performed to amplify HOXB5 mRNA in 15 OSCCs and adjacent non-tumoral epithelium. A possible association with TNM and histopathologic data was verified by the chi-square and post-hoc t-test.
Results: HOXB5 was amplified in 60% non-tumoral epithelium and in 93.3% carcinomas. No statistically significant differences were found regarding the HOXB5 mRNA expression and TNM or histological grade.
Conclusion: HOXB5 is expressed in OSCCs and its role in cancer progression should be further investigated.
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http://dx.doi.org/10.1590/s1678-77572011000200008 | DOI Listing |
J Cell Sci
January 2025
Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
Ligand binding to EGFR activates Rho family GTPases, triggering actin cytoskeleton reorganization, cell migration and invasion. Activated EGFR is also rapidly endocytosed but the role of EGFR endocytosis in cell motility is poorly understood. Hence, we used live-cell microscopy imaging to demonstrate that endogenous fluorescently labeled VAV2, a guanine nucleotide exchange factor for Rho GTPases, is co-endocytosed with EGFR in genome-edited human oral squamous cell carcinoma (HSC3) cells, an in vitro model for head-and-neck cancer where VAV2 is known to promote metastasis and associates with poor prognosis.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Oral Anatomy and Physiology, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, Hospital of Stomatology, Jilin University, Changchun, China.
Oral squamous cell carcinoma (OSCC) is a highly aggressive and malignant tumor of oral cavity with a poor prognosis and high mortality due to the limitations of existing therapies. The significant role of tumor microenvironment (TME) in the initiation, development, and progression of OSCC has been widely recognized. Various cells in TME, including tumor-associated macrophages (TAMs), cancer-associated fibroblasts (CAFs), T lymphocytes, tumor-associated neutrophils (TANs), myeloid-derived suppressor cells (MDSCs) and dendritic cells (DCs), form a complicated and important cellular network to modulate OSCC proliferation, invasion, migration, and angiogenesis by secreting RNAs, proteins, cytokines, and metabolites.
View Article and Find Full Text PDFJ Cancer
January 2025
School of Stomatology, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China.
Dioscin is a natural plant-derived steroidal saponin that exerts antitumor effects in multiple cancers. It is widely involved in multiple apoptotic pathways and exerts its anti-tumor effects. In this study, we discovered that Dioscin treatment increased the expression of Noxa, thereby inducing the apoptosis of OSCC cells.
View Article and Find Full Text PDFJ Cancer
January 2025
Department of Oral and Maxillofacial Surgery, School of Stomatology, Hebei Medical University, Hebei Technology Innovation Center of Oral Health, Key Laboratory of Stomatology and Clinical Research Centre for Oral Diseases, Hebei Province, Shijiazhuang, 050017, China.
HOXD13, a member of the homeobox gene family, plays a critical role in developmental processes and has been implicated in various malignancies, including pancreatic cancer and glioma. However, its role in oral squamous cell carcinoma (OSCC) remains poorly understood. This study aimed to elucidate the potential of HOXD13 as a diagnostic biomarker and therapeutic target for OSCC.
View Article and Find Full Text PDFJ Cancer
January 2025
Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.
Oral squamous cell carcinoma (OSCC) affects a substantial proportion of the Asian population and is influenced by various genetic risk factors. The (), a regulator of the circadian rhythm, has been implicated in certain neoplasms. Accordingly, this study investigated the association between single-nucleotide polymorphisms and clinical manifestations of OSCC.
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