Defining the Genetics of Basosquamous Carcinoma

Basosquamous carcinoma (BSC) is a rare form of skin cancer with both basaloid and squamous morphology. Chiang et  al. (2019) genetically define BSCs and demonstrate that BSCs likely originate as basal cell carcinomas that partially squamatize through accumulation of ARID1A mutations and RAS/MAPK pathway activation.
Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Tags: Commentary Source Type: research

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Abstract BACKGROUND: Treatment of patients with recurrent or metastatic squamous cell carcinoma of the head and neck (SCCHN) with programmed cell death protein 1 (PD-1) inhibitors has been associated with risk of developing immune-mediated adverse reactions (IMARs). OBJECTIVES: This review provides nurses with an overview of the safety of PD-1 inhibitors approved by the U.S. Food and Drug Administration for recurrent or metastatic SCCHN following platinum chemotherapy, as well as recommendations for assisting with the diagnosis and management of IMARs. METHODS: PubMed® searches were conducted to iden...
Source: Clinical Journal of Oncology Nursing - Category: Nursing Authors: Tags: Clin J Oncol Nurs Source Type: research
This article discusses the role of radiation in the treatment of cutaneous squamous cell carcinoma, basal cell carcinoma, Merkel cell carcinoma, cutaneous T-cell lymphoma, and B-cell lymphomas.
Source: Hematology/Oncology Clinics of North America - Category: Cancer & Oncology Authors: Source Type: research
The aim of this study was to validate the prognostic significance of the lymph node ratio (LNR) in patients suffering from oral squamous cell carcinoma in regard to different anatomical subsites. A cohort of 430 patients was investigated to determine the rates of primary metastasis and local and regional disease recurrence. Correlation analysis of the LNR with relevant clinical and pathological parameters was performed. Receiver operating characteristic (ROC) curve analysis was conducted to evaluate the prognostic impact for different subsites.
Source: International Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Authors: Tags: Clinical Paper Source Type: research
This article is one of a series discussing cancer prevention and detection in primary care. Here we focus on the most common types of skin cancer: melanoma, squamous cell carcinoma and basal cell carcinoma. We describe the main risk factors and prevention advice. We summarise key guidance on the sy mptoms and signs of skin cancers and their management, including their initial assessment and referral. In addition, we review emerging technologies and diagnostic aids which may become available for use in primary care in the near future, to aid the triage of suspicious skin lesions.
Source: Advances in Therapy - Category: Drugs & Pharmacology Source Type: research
This study documents that the loss of BAP1 nuclear expression is quite a frequent finding in PCC/PGL, suggesting a possible role ofBAP1 in the pathogenesis of these tumors. Gene mutations do not seem to be involved in this loss of expression, at least in most cases. Other genetic and epigenetic mechanisms need to be further investigated.
Source: Endocrine Pathology - Category: Pathology Source Type: research
This study aimed to compare and analyze the patterns of care and survival outcomes of patients with anal squamous cell carcinoma and anal adenocarcinoma. DESIGN: This was a retrospective study. SETTING: This study was performed by utilizing the National Cancer Database. PATIENTS: We selected a total of 19,539 patients between 2004 and 2014 with stage II to III squamous cell carcinoma or adenocarcinoma of the anus. INTERVENTION: The treatment groups analyzed were surgery alone, neoadjuvant chemoradiation followed by surgery, surgery followed by adjuvant chemoradiation, or definitive chemoradiation. MAIN OUTCOME...
Source: Diseases of the Colon and Rectum - Category: Gastroenterology Tags: Original Contributions: Colorectal Cancer Source Type: research
Transcription factors (TFs) are responsible for the regulation of various activities related to cancer like cell proliferation, invasion, and migration. It is thought that, the measurement of TFs levels could ...
Source: Cancer Cell International - Category: Cancer & Oncology Authors: Tags: Primary research Source Type: research
ConclusionThis study evaluated the survival impact of HPV infection in LSCC patients. The OS of the HPV ‐positive group was better than that of the HPV‐negative group in terms of short‐term survival. Compared with the HPV‐negative group, the HPV‐positive group had a better trend of DFS, suggesting that a larger sample size and further exploration of the pathology and local control of HPV‐p ositive tumors are needed.
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research
MicroRNAs (miRNAs or miRs) are small, noncoding RNAs that are implicated in the regulation of most biological processes. Global miRNA biogenesis is altered in many cancers, and RNA-binding proteins play a role in miRNA biogenesis, presenting a promising avenue for targeting miRNA dysregulation in diseases. miR-34a exhibits tumor-suppressive activities by targeting cell cycle regulators CDK4/6 and anti-apoptotic factor BCL-2, among other regulatory pathways such as Wnt, TGF-β, and Notch signaling. Many cancers exhibit down-regulation or loss of miR-34a, and synthetic miR-34a supplementation has been shown to inhibit tu...
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: Accelerated Communications Source Type: research
Chemerin is a multifunctional protein acting mainly through the G protein-coupled receptor ChemR23/CMKLR1/Chemerin1. Its expression is frequently downregulated in human tumors, including in melanoma and squamous cell carcinoma of the skin and anti-tumoral properties of chemerin were reported in mouse tumor graft models. In the present study, we report the development of spontaneous skin tumors in aged ChemR23-deficient mice. In order to test the potential therapeutic benefit of chemerin analogs, a transgenic model in which bioactive chemerin is over-expressed by basal keratinocytes was generated. These animals are characte...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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