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https://www.readbyqxmd.com/read/28212443/recurrent-rearrangements-of-the-myb-sant-like-dna-binding-domain-containing-3-gene-msantd3-in-salivary-gland-acinic-cell-carcinoma
#1
Nicholas Barasch, Xue Gong, Kevin A Kwei, Sushama Varma, Jewison Biscocho, Kunbin Qu, Nan Xiao, Joseph S Lipsick, Robert J Pelham, Robert B West, Jonathan R Pollack
Pathogenic gene fusions have been identified in several histologic types of salivary gland neoplasia, but not previously in acinic cell carcinoma (AcCC). To discover novel gene fusions, we performed whole-transcriptome sequencing surveys of three AcCC archival cases. In one specimen we identified a novel HTN3-MSANTD3 gene fusion, and in another a novel PRB3-ZNF217 gene fusion. The structure of both fusions was consistent with the promoter of the 5' partner (HTN3 or PRB3), both highly expressed salivary gland genes, driving overexpression of full-length MSANTD3 or ZNF217...
2017: PloS One
https://www.readbyqxmd.com/read/28210977/genetic-characterization-of-adenoid-cystic-carcinoma-of-the-minor-salivary-glands-a-potential-familial-occurrence-in-first-degree-relatives
#2
Hani Ibrahim Channir, Thomas van Overeem Hansen, Simon Andreasen, Christina Westmose Yde, Katalin Kiss, Birgitte Wittenborg Charabi
Adenoid cystic carcinoma (AdCC) is a malignant salivary gland tumor. To date, no cases of AdCC in first-degree relatives have been reported in the literature. We present a 50-year-old female (Case 1) and this patients' father (Case 2), both of whom were diagnosed with AdCC of the minor salivary glands. Histology of Case 1 demonstrated a tubulocribriform AdCC whereas Case 2 primarily was an AdCC of solid type. Both cases harbored the MYB-NFIB gene fusion as demonstrated by FISH and RNA-sequencing. After filtering and selection of putative deleterious variants, whole exome sequencing identified 18 germline variants in common between Case 1 and Case 2...
February 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28210575/cytokeratin-immunoprofile-of-primary-and-metastatic-adenoid-cystic-carcinoma-of-salivary-glands-a-report-of-two-cases
#3
Cibele Pidorodeski Nagano, Cláudia Malheiros Coutinho-Camillo, Clovis Antônio Pinto, Fernando Augusto Soares, Filipa Santos, Isabel Fonseca, Silvia Vanessa Lourenço
Distant metastases from salivary gland tumors are considered infrequent: the incidence of distant metastases ranges from 24% to 61% according to different histotypes and to the site of the primary mass. The most common site of distant metastases due to salivary gland malignancies is the lung. From the pathology point of view, cytokeratins (CK) are important differentiation markers in salivary gland tumors, which are often used for the diagnostic process. Their employment also may be useful to identify and confirm the diagnosis of their distant metastases...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28209524/foxa1-in-hpv-associated-carcinomas-its-expression-in-carcinomas-of-the-head-and-neck-and-of-the-uterine-cervix
#4
Georgia Karpathiou, Vanessa Da Cruz, Francois Casteillo, Mousa Mobarki, Jean Marc Dumollard, Celine Chauleur, Fabien Forest, Jean Michel Prades, Michel Peoc'h
BACKGROUND: FOXA1 is a major transcription factor involved in the action of human papilloma virus (HPV). However, it has been never studied in HPV-associated tumors. AIM OF THE STUDY: To investigate its expression in cervical and head and neck tumors. MATERIAL AND METHODS: 63 cervical carcinomas/dysplasias and 152 head and neck squamous cell carcinomas (HNSCC) were immunohistochemically studied for the expression of FOXA1. RESULTS: 63...
February 13, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28208703/androgen-receptor-signaling-in-salivary-gland-cancer
#5
REVIEW
Martin G Dalin, Philip A Watson, Alan L Ho, Luc G T Morris
Salivary gland cancers comprise a small subset of human malignancies, and are classified into multiple subtypes that exhibit diverse histology, molecular biology and clinical presentation. Local disease is potentially curable with surgery, which may be combined with adjuvant radiotherapy. However, metastatic or unresectable tumors rarely respond to chemotherapy and carry a poorer prognosis. Recent molecular studies have shown evidence of androgen receptor signaling in several types of salivary gland cancer, mainly salivary duct carcinoma...
February 8, 2017: Cancers
https://www.readbyqxmd.com/read/28208669/the-role-of-nerve-growth-factor-ngf-and-its-precursor-forms-in-oral-wound-healing
#6
REVIEW
Karl Schenck, Olav Schreurs, Katsuhiko Hayashi, Kristen Helgeland
Nerve growth factor (NGF) and its different precursor forms are secreted into human saliva by salivary glands and are also produced by an array of cells in the tissues of the oral cavity. The major forms of NGF in human saliva are forms of pro-nerve growth factor (pro-NGF) and not mature NGF. The NGF receptors tropomyosin-related kinase A (TrkA) and p75 neurotrophin receptor (p75(NTR)) are widely expressed on cells in the soft tissues of the human oral cavity, including keratinocytes, endothelial cells, fibroblasts and leukocytes, and in ductal and acinar cells of all types of salivary glands...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208029/l1-peptide-conjugated-fibrin-hydrogels-promote-salivary-gland-regeneration
#7
K Nam, C-S Wang, C L M Maruyama, P Lei, S T Andreadis, O J Baker
Hyposalivation contributes to dental caries, periodontitis, and microbial infections. Additionally, it impairs activities of daily living (e.g., speaking, chewing, and swallowing). Treatments for hyposalivation are currently limited to medications (e.g., the muscarinic receptor agonists pilocarpine and cevimeline) that induce saliva secretion from residual acinar cells and the use of saliva substitutes. However, given that these therapies provide only temporary relief, the development of alternative treatments to restore gland function is essential...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28207533/lymphoepithelial-carcinoma-of-the-salivary-glands
#8
Yeun J Kim, Hyun S Hong, Sun H Jeong, Eun H Lee, Min J Jung
RATIONALE: Lymphoepithelial carcinoma (LEC) is a rare malignancy with the histopathological feature of undifferentiated carcinoma and an intermixed reactive lymphoplasmacytic infiltration. Although clinically significant because of its malignant nature, it is difficult to make a differential diagnosis by preoperative imaging. Here, we report 3 cases of primary LEC arising in the major salivary glands, which showed unusual imaging features unlike other malignant tumors. PATIENT CONCERNS: Our first case is a 44-year-old man with LEC in the right parotid gland, the second case is a 71-year-old woman with LEC in the right submandibular gland, and the third case is a 35-year-old woman with LEC in the right parotid gland...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28206977/prognostic-significance-of-p53-immunohistochemical-expression-in-adenoid-cystic-carcinoma-of-the-salivary-glands-a-meta-analysis
#9
REVIEW
Qinglin Li, Ping Huang, Chuanming Zheng, Jiafeng Wang, Minghua Ge
Adenoid cystic carcinoma of salivary glands is a rare adenocarcinoma and has been placed in "high-risk" category as poor long-term prognosis. The purpose of this study was to investigate p53 protein expression in adenoid cystic carcinoma of salivary glands and its correlation with clinicopathological parameters and prognosis. Literatures were searched from PubMed, Embase, Cochrane Library and Web of Science, which investigated the relationships between p53 expression and pathological type, clinical stage, local recurrence, metastasis, nerve infiltration and overall survival...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28205524/interleukin-33-produced-by-m2-macrophages-and-other-immune-cells-contributes-to-th2-immune-reaction-of-igg4-related-disease
#10
Sachiko Furukawa, Masafumi Moriyama, Kensuke Miyake, Hitoshi Nakashima, Akihiko Tanaka, Takashi Maehara, Mana Iizuka-Koga, Hiroto Tsuboi, Jun-Nosuke Hayashida, Noriko Ishiguro, Masaki Yamauchi, Takayuki Sumida, Seiji Nakamura
IgG4-related disease (IgG4-RD) is characterized by elevated serum IgG4 and marked infiltration of IgG4-positive cells in multiple organs. Interleukin-33 (IL-33) is a recently described cytokine that is secreted by damaged epithelial cells, macrophages, and dendritic cells, and potently activates helper T type 2 (Th2) immune responses, which have been suggested to play a major role in IgG4 production of IgG4-RD. Here, we assessed the expression of IL-33 and related molecules in the salivary glands (SGs) of patients with IgG4-RD versus that in patients with Sjögren's syndrome (SS) and controls...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28205384/cribriform-adenocarcinoma-of-the-minor-salivary-gland-arising-in-the-tonsil-with-metastasis-to-a-cervical-lymph-node-a-case-report-with-description-of-fine-needle-aspiration-cytology
#11
Alexa Pagano, Katie Dennis
Cribriform adenocarcinoma of minor salivary gland (CAMSG) is a rare tumor of the head and neck. We report a case of a 70-year-old female who presented with a 4-5-month history of a left neck mass. CT scan of the neck showed a left neck mass just inferior to the angle of the mandible and left tonsillar prominence. Fine-needle aspiration (FNA) of the neck mass showed epithelial groups with focal cribriform architecture. The cells had round to oval nuclei and fine chromatin. The background contained scattered lymphocytes...
February 16, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28203473/dysgenetic-polycystic-disease-of-minor-salivary-gland-a-rare-case-report-and-review-of-the-literature
#12
N Srikant, Shweta Yellapurkar, Karen Boaz, Mohan Baliga, Nidhi Manaktala, Ankita Sharma, Shakthi Dorai, Prajwal Pai
Polycystic (dysgenetic) disease of the salivary glands is a rare entity that has only recently been described in the literature. The disease is more commonly seen in females and majority of the cases have presented as bilateral parotid gland swellings. This case presenting in a 21-year-old male is the first of this unusual entity involving solely the minor salivary gland on the lower lip. This case report highlights the importance for the clinician to be aware of this differential diagnosis, when treating an innocuous lesion like a mucocele...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28203199/plexiform-neurofibroma-involving-the-lacrimal-gland
#13
Mikael Hofsli, Nico Gampenrieder, Steffen Heegaard
BACKGROUND: To present a rare case of a 2-year-old girl with neurofibromatosis type 1 (NF1) who presented with ptosis of the right upper eyelid along with a tumor in the eyelid. METHODS: A magnetic resonance imaging scan of the orbit revealed a solid tumor located extraconally at the site of the right lacrimal gland. A transcranial orbitotomy was performed. RESULTS: Histopathological examination demonstrated expanded nerve branches/fascicles cut in various planes in between normal lacrimal gland acini...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28198526/tongue-and-lingual-salivary-glands-of-the-canary-sem-and-histochemical-study
#14
Feyza Basak, Sukru Hakan Atalgin, Emine Umran Bozkurt
In this study, morphological characteristics of the canary tongue were examined macroscopically and histologically besides using scanning electron microscopy (SEM). Furthermore, histochemical features of the lingual salivary glands of the canary were also examined. The results suggest that the tongue of the canary has an equilateral quadrangle shape is sloped towards the apex on its dorsal surface; where its sides are bounded by tall epithelial extensions. Additionally, histological examination showed that salivary glands were only present on the body of the tongue and there were no taste buds...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28198156/prevalence-of-secondary-sj%C3%A3-gren-s-syndrome-in-indian-patients-with-rheumatoid-arthritis-a-single-center-study
#15
Krishna Santosh, Varun Dhir, Surjit Singh, Ashwani Sood, Amit Gupta, Aman Sharma, Shefali Sharma
AIM: To assess the prevalence of secondary Sjögren's syndrome (sSS) and its association with joint damage in patients with rheumatoid arthritis (RA) from northern India. METHODS: Patients included had RA, fulfilling the 1987 American College of Rheumatology criteria, with disease duration of more than 1 year. They were administered a sicca questionnaire that included six questions from subjective criteria of American European Consensus Group (AECG) criteria. Those who answered affirmatively to at least one question underwent Schirmer I test (ocular function) and salivary scintigraphy (salivary gland involvement)...
February 15, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28194862/patterns-of-care-and-survival-of-adjuvant-radiation-for-major-salivary-adenoid-cystic-carcinoma
#16
Anna Lee, Babak Givi, Virginia W Osborn, David Schwartz, David Schreiber
OBJECTIVES/HYPOTHESIS: National Cancer Care Network guidelines suggest consideration of adjuvant radiation even for early stage adenoid cystic carcinoma of the salivary glands. We used the National Cancer Data Base (NCDB) to analyze practice patterns and outcomes of postoperative radiotherapy for adenoid cystic carcinomas. STUDY DESIGN: Retrospective NCDB review. METHODS: Patients with nonmetastatic adenoid cystic carcinoma of the parotid, submandibular, or another major salivary gland from 2004 to 2012 were identified...
February 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28194567/ultrastructural-characterization-of-mammary-analogue-secretory-carcinoma-of-the-salivary-glands-a-distinct-entity-from-acinic-cell-carcinoma
#17
Julie Guilmette, Gunnlaugur P Nielsen, William C Faquin, Martin Selig, Vânia Nosé, Anthony W S Chi, Peter M Sadow
Mammary analogue secretory carcinoma (MASC) of the salivary glands is a recently described neoplasm of the salivary glands with a characteristic morphology complemented by a specific cytogenetic translocation and gene rearrangements. Although immunophenotypic and cytogenetic differences allow for a more reliable distinction, ultrastructural features can also provide important information about the relationship between MASC, classic acinic cell carcinoma (AciCC), and AciCC intercalated duct cell-predominant variant...
February 13, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28194490/ranula-current-concept-of-pathophysiologic-basis-and-surgical-management-options
#18
Daniel Kokong, Augustine Iduh, Ikechukwu Chukwu, Joyce Mugu, Samuel Nuhu, Sule Augustine
BACKGROUND: There is no consensus opinion on a definitive surgical management option for ranulas to curtail recurrence, largely from the existing gap in knowledge on the pathophysiologic basis. AIM: To highlight the current scientific basis of ranula development that informed the preferred surgical approach. DESIGN: Retrospective cohort study. SETTING: Public Tertiary Academic Health Institution. METHOD: A 7-year 7-month study of ranulas surgically managed at our tertiary health institution was undertaken-June 1, 2008-December 31, 2015-from case files retrieved utilising the ICD-10 version 10 standard codes...
February 13, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28192873/overview-of-human-salivary-glands-highlights-of-morphology-and-developing-processes
#19
REVIEW
Fernanda de Paula, Tathyane Harumi Nakajima Teshima, Ricardo Hsieh, Milena Monteiro Souza, Marcello Menta Simonsen Nico, Silvia Vanessa Lourenco
Salivary glands are essential organs that produce and secrete saliva to the oral cavity. During gland morphogenesis, many developmental processes involve a series of coordinated movements and reciprocal interactions between the epithelium and mesenchyme that generate the ductal system and the secretory units. Recent studies have shown new findings about salivary gland development, particularly regarding lumen formation and expansion, with the involvement of apoptosis and cell polarization, respectively. Moreover, it has been observed that human minor salivary glands start forming earlier than previously published and that distinct apoptotic mediators can trigger duct lumen opening in humans...
February 13, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28192122/plasmodium-berghei-plasmepsin-viii-is-essential-for-sporozoite-gliding-motility
#20
Babu S Mastan, Sunil Kumar Narwal, Sandeep Dey, Kota Arun Kumar, Satish Mishra
Plasmodium aspartic proteases, termed plasmepsins (PMs) play many critical roles such as haemoglobin degradation, cleavage of PEXEL proteins and sporozoite development in the parasite life cycle. Most of the plasmepsins are well characterized, however the role of PM VIII in Plasmodium remains unknown. Here, we elucidate the functions of PM VIII (PBANKA_132910) in the rodent malaria parasite Plasmodium berghei (Pb). By targeted gene deletion, we show that PbPM VIII is critical for sporozoite egress from an oocyst and gliding motility, which is a prerequisite for the invasion of salivary glands and subsequent transmission to the vertebrate host...
February 10, 2017: International Journal for Parasitology
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