Search results for " CELL CARCINOMA"

Invasive Diagnostics and Therapy

2022

The book is an update on contentious or unsettled issues concerning invasive diagnostic and therapeutic challenges in cancer and related disorders, focusing on the surgical approach. Topics include recommendations for the best practice in using the surgery safety checklist, surgical strategies in a variety of thoracic cancers, renal cell carcinoma, tumors of parathyroid glands, mesothelioma, and bariatric surgeries. The focus is on the diagnostic and therapeutic challenges of aggressive cancerous entities, choosing the most beneficial modes for optimal outcomes and patient survival. Chapters also address radioimaging and therapy outcomes in different intracranial lesions leading to severe n…

Nivolumab VERSUS Cabozantinib as Second-Line Therapy in Patients With Advanced Renal Cell Carcinoma: A Real-World Comparison

2022

Background: Tyrosine-kinase inhibitors (TKIs) still represent a first-line option for selected patients with metastatic Renal Cell Carcinoma (mRCC). We aimed to compare the real-world efficacy of nivolumab or cabozantinib as second-line therapy in specific mRCC subpopulations. Patients and Methods: We retrospectively collected data from 11 centers from Italy, Spain and US. Overall Survival (OS) and Progression-Free Survival (PFS) were analyzed using Kaplan-Meier curves. Cox proportional models were used at univariate and multivariate analyses. Results: We collected data from 343 patients with mRCC, 123 (36%) treated with cabozantinib and 220 (64%) with nivolumab. The median OS resulted long…

Bioinformatics analysis of TP53 gene in head and neck squamous cell carcinoma patients from the cancer genome atlas

2019

Efficacy of stem cells in bone rehabilitation in patients with alveolar bone atrophy: a systematic review

2023

Background: Biomedical engineering proposes the use of stem cells as a bone rehabilitation treatment in patients with alveolar bone defects. Many authors suggest that this innovative technique could represent the future of bone regeneration in dentistry. The present study systematically reviewed the efficacy of stem cells in bone regeneration in patients with alveolar bone atrophy. Material and methods: The study was developed following the criteria of the PRISMA guideline (2020). The literature review was conducted in Pubmed, Medline Complete, and Scopus. The search algorithms used the following key words: stem cells, bone regeneration, and alveolar ridge augmentation. To assess the risk o…

Pharmacological genome demethylation increases radiosensitivity of head and neck squamous carcinoma cells

2011

Aberrant inactivation of tumor suppressor genes by promoter hypermethylation has been recognized as a crucial step of tumor development and is related to aggressiveness and therapy resistance. To identify potential novel treatment strategies, we evaluated pharmacological genome demethylation for the increase of irradiation treatment effectiveness in head and neck squamous cell carcinoma (HNSCC) in this in vitro study. HNSCC cells were cultured with 2 different concentrations of 5-azacytidine (5-Aza) for 72 h, followed by a single fraction irradiation with 4 or 50 Gy, respectively. To show successful genome demethylation, the methylation status of the tumor suppressor gene hic1 (hypermethyla…

MMP-10/stromelysin-2 promotes invasion of head and neck cancer.

2011

BackgroundPeriostin, IFN-induced transmembrane protein 1 (IFITM1) and Wingless-type MMTV integration site family, member 5B (Wnt-5b) were previously identified as the invasion promoted genes of head and neck squamous cell carcinoma (HNSCC) by comparing the gene expression profiles between parent and a highly invasive clone. We have previously reported that Periostin and IFITM1 promoted the invasion of HNSCC cells. Here we demonstrated that Wnt-5b overexpression promoted the invasion of HNSCC cells. Moreover, stromelysin-2 (matrix metalloproteinase-10; MMP-10) was identified as a common up-regulated gene among Periostin, IFITM1 and Wnt-5b overexpressing HNSCC cells by using microarray data s…

Surgical treatment for renal cell carcinoma

2010

Renal cell carcinoma is chemoresistent and radio-therapy so that surgical tumour excision of the tumor is the only potentially curative option, either as radical nephrectomy or as nephron sparing surgery. As a result of continuously improving radiological imaging modalities, renal tumours are nowadays detected incidentally at an asymptomatic stage in up to 75 %. The ten-year cancer-specific survival for organ-confined disease (T1, T2) after R0-excision is > 90 %. Moreover, locally extending renal tumours (T3) can be treated successfully with five-year survival rates of > 65 %. In case of tumours in a single kidney or synchronous bilateral tumours, good functional and oncological long-term r…

The association between appendicitis severity and patient age with appendiceal neoplasm histology—a population-based study

2022

Abstract Purpose Recent studies have reported alarming appendiceal tumor rates associated with complicated acute appendicitis, especially in patients presenting with a periappendicular abscess. However, the data on histology of appendiceal tumors among acute appendicitis patients is limited, especially in patient cohorts differentiating between uncomplicated and complicated acute appendicitis. We have previously reported the association of increased appendiceal tumor prevalence with complicated acute appendicitis in this population-based study. The objective of this secondary analysis was to evaluate the association of both appendicitis severity and patient age with appendiceal tumor histol…

The hypoxia-inducible factor-responsive proteins semaphorin 4D and vascular endothelial growth factor promote tumor growth and angiogenesis in oral s…

2012

Growth and metastasis of solid tumors requires induction of angiogenesis to ensure the delivery of oxygen, nutrients and growth factors to rapidly dividing transformed cells. Through either mutations, hypoxia generated by cytoreductive therapies, or when a malignancy outgrows its blood supply, tumor cells undergo a change from an avascular to a neovascular phenotype, a transition mediated by the hypoxia-inducible factor (HIF) family of transcriptional regulators. Vascular endothelial growth factor (VEGF) is one example of a gene whose transcription is stimulated by HIF. VEGF plays a crucial role in promoting tumor growth and survival by stimulating new blood vessel growth in response to suc…

Targeting of tumor associated antigens in renal cell carcinoma using proteome-based analysis and their clinical significance

2002

The suitability of proteome-based strategies for the targeting of tumor-associated markers along with further analysis regarding their clinical significance were investigated in human renal cell carcinoma (RCC). The immunogenic protein expression profile of normal kidney and RCC cell lines was studied by proteome analysis combined with immunoblotting using sera from healthy donors and RCC patients, also termed PROTEOMEX. Employing this approach, a series of proteins reactive with either RCC patient sera and/or reactive with control sera were identified by microanalysis of tryptic peptides. Some of these candidate antigens represent members of the cytoskeletal family, such as cytokeratins, i…