Mouth ulcers are a common complaint by patients, with individuals regularly presenting to primary care practitioners for diagnosis and treatment. The aetiology and pathogenesis of oral ulceration is, however, both varied and complex. This article highlights the importance of differentiating recurrent aphthous stomatitis (RAS) in otherwise healthy individuals from recurrent oral ulceration (ROU) secondary to known or unknown systemic disease.
View Article and Find Full Text PDFTo learn more about cancer-associated fibroblasts (CAFs), we have isolated fibroblasts from different stages of breast cancer progression and analysed their function and gene expression. These analyses reveal that activation of the YAP transcription factor is a signature feature of CAFs. YAP function is required for CAFs to promote matrix stiffening, cancer cell invasion and angiogenesis.
View Article and Find Full Text PDFBackground: Multiple endocrine neoplasia, type 2B (MEN 2B), is an autosomal-dominant condition characterized by the development of multiple endocrine tumors. All affected people develop an aggressive form of medullary thyroid cancer (MTC). Without early prophylactic thyroidectomy, the prognosis for patients with MEN 2B is poor; the average age at death is 21 years.
View Article and Find Full Text PDFBr J Oral Maxillofac Surg
July 2012
We describe exfoliation of the lower left deciduous canine and deciduous first molar (CD) and associated alveolus of unknown cause in a 5-year-old healthy boy. Extraction of the teeth and removal of local bone led to healing without complication.
View Article and Find Full Text PDFCollective cell migration occurs in a range of contexts: cancer cells frequently invade in cohorts while retaining cell-cell junctions. Here we show that collective invasion by cancer cells depends on decreasing actomyosin contractility at sites of cell-cell contact. When actomyosin is not downregulated at cell-cell contacts, migrating cells lose cohesion.
View Article and Find Full Text PDFThis series outlines, briefly, the clinical presentation, diagnosis and management of the 31 chronic medical problems which are most common and important in the developed countries, but space also precludes coverage of acute infections and most malignant disease.
View Article and Find Full Text PDF