The frequent occurrence of salivary gland pleomorphic adenomas characterized by clonal structural chromosome abnormalities involving 8q12 raises the question as to how the cytogenetic rearrangements correspond to molecular mechanisms of tumor development. Since the proto-oncogene c-mos maps to this breakpoint region, DNA from eight adenomas with these aberrations was isolated and checked for rearrangements of c-mos after digestion by BamHI, EcoRI and HindIII. In none of the tumors was a rearranged allele besides the germ-line fragments found.
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http://dx.doi.org/10.1016/0165-4608(90)90138-z | DOI Listing |
Oral Maxillofac Surg
January 2025
Centre for Oral, Clinical & Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, Guy's Hospital, Tower Wing, London, UK.
Background: The primary objective of this study was to assess the benefit of cancer-directed surgery (CDS) on both overall survival (OS) and cancer-specific survival (CSS) of patients with malignant major salivary gland cancers (MMSGCs). The secondary objective was to explore the benefits of adjuvant therapy on the survival outcomes of these patients.
Methods: Patients diagnosed with MMSGC were extracted from the SEER database and subsequently categorized into two cohorts: CDS and non-CDS.
Int J Surg Pathol
January 2025
Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan.
Median mandibular cyst is defined as an odontogenic cyst in a rare midline location. In spite of this definition, there have been two reports of a peculiar lesion, so-called "ciliated" median mandibular cyst associated with vital teeth, the origin of which cannot be explained in terms of odontogenic epithelium multipotentiality. We describe a thorough profile of an additional example.
View Article and Find Full Text PDFInt J Surg Pathol
January 2025
Department of Oral Diagnosis, Piracicaba School of Dentistry, State University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil.
Genome Biol Evol
January 2025
ISEM, Univ. Montpellier, CNRS, IRD, Montpellier, France.
Ant-eating mammals represent a textbook example of convergent evolution. Among them, anteaters and pangolins exhibit the most extreme convergent phenotypes with complete tooth loss, elongated skulls, protruding tongues, and hypertrophied salivary glands producing large amounts of saliva. However, comparative genomic analyses have shown that anteaters and pangolins differ in their chitinase acidic gene (CHIA) repertoires, which potentially degrade the chitinous exoskeletons of ingested ants and termites.
View Article and Find Full Text PDFAdv Rheumatol
January 2025
Department of Ophthalmology, Otolaryngology, Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil.
Background: Endoplasmic reticulum stress (ERS) and the unfolded protein response (UPR) are adaptive mechanisms for conditions of high protein demand, marked by an accumulation of misfolded proteins in the endoplasmic reticulum (ER). Rheumatic autoimmune diseases (RAD) are known to be associated with chronic inflammation and an ERS state. However, the activation of UPR signaling pathways is not completely understood in Sjögren's disease (SD).
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