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https://www.readbyqxmd.com/read/28432120/two-glycosaminoglycan-binding-domains-of-the-mouse-cytomegalovirus-encoded-chemokine-mck-2-are-critical-for-oligomerization-of-the-full-length-protein
#1
Sergio M Pontejo, Philip M Murphy
Chemokines are essential for antimicrobial host defenses and tissue repair. Herpesviruses and poxviruses also encode chemokines, copied from their hosts and repurposed for multiple functions, including immune evasion. The CC chemokine MCK-2 encoded by mouse cytomegalovirus (MCMV) has an atypical structure consisting of a classic chemokine domain N-terminal to a second unique domain, resulting from the splicing of MCMV ORFs m131 and m129. MCK-2 is essential for full MCMV infectivity in macrophages and for persistent infection in the salivary gland...
April 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28431798/absence-of-myoepithelial-cells-correlates-with-invasion-and-metastasis-of-carcinoma-ex-pleomorphic-adenoma
#2
P Ye, Y Gao, T Wei, G-Y Yu, X Peng
Myoepithelial cells (MECs) are implicated in the development and progression of human salivary gland tumours. Here, we investigate the potential role for MECs in invasion and metastasis of carcinoma ex pleomorphic adenoma (CXPA). Tumour tissues from 40 CXPA patients diagnosed between 1960 and 2014 were obtained. Patient samples were divided into two groups (non-invasive tumours, n=10; and frankly invasive tumours, n=30). Each group was further divided into two subgroups (metastatic tumours and non-metastatic tumours)...
April 18, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28431281/dengue-virus-replicates-and-accumulates-in-aedes-aegypti-salivary-glands
#3
Vincent Raquin, Louis Lambrechts
Dengue virus (DENV) is an RNA virus transmitted among humans by mosquito vectors, mainly Aedes aegypti. DENV transmission requires viral dissemination from the mosquito midgut to the salivary glands. During this process the virus undergoes several population bottlenecks, which are stochastic reductions in population size that restrict intra-host viral genetic diversity and limit the efficiency of natural selection. Despite the implications for virus transmission and evolution, DENV replication in salivary glands has not been directly demonstrated...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28430665/p2x7-receptor-and-nlrp3-inflammasome-activation-in-head-and-neck-cancer
#4
Ju Young Bae, Sang-Woo Lee, Yong-Hwan Shin, Jong-Ho Lee, Jeong Won Jahng, Kyungpyo Park
In this study, we investigated purinergic receptor P2X7 and NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome expressions, and their role in head and neck cancer. We found upregulation of purinergic receptor P2X7 and all NLRP3 inflammasome components in biopsied head and neck squamous cell carcinoma tissues. Similarly, the expression of purinergic receptor P2X7, apoptosis-associated speck-like protein containing CARD, and pro-form caspase 1 in A253 cells derived from epidermoid carcinoma were highly upregulated in comparison to normal Human Salivary Gland cell line...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424677/responses-of-the-housefly-musca-domestica-to-the-hytrosavirus-replication-impacts-on-host-s-vitellogenesis-and-immunity
#5
Henry M Kariithi, Xu Yao, Fahong Yu, Peter E Teal, Chelsea P Verhoeven, Drion G Boucias
Hytrosaviridae family members replicate in the salivary glands (SGs) of their adult dipteran hosts and are transmitted to uninfected hosts via saliva during feeding. Despite inducing similar gross symptoms (SG hypertrophy; SGH), hytrosaviruses (SGHVs) have distinct pathobiologies, including sex-ratio distortions in tsetse flies and refusal of infected housefly females to copulate. Via unknown mechanism(s), SGHV replication in other tissues results in reduced fecundity in tsetse flies and total shutdown of vitellogenesis and sterility in housefly females...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28423973/neurological-involvement-of-igg4-related-disease-description-of-a-case-and-review-of-the-literature
#6
Marco Varrassi, Camilla Gianneramo, Francesco Arrigoni, Paolo Cerrone, Patrizia Sucapane, Carmine Marini, Alessandra Splendiani
IgG4-related disease is a recently discovered pathological entity, histologically characterised by fibrosis and IgG4-positive plasma cell infiltration. This condition may virtually involve every site of the organism, with a various range of clinical presentations. The most commonly affected organ is the pancreatic gland, but it can also involve the biliary tract, salivary and lacrimal glands, kidneys, orbital tissues, lymph nodes, lungs and many others. More recently, IgG4-related disease has been demonstrated to involve, in rare cases, also the central nervous system, with a pattern mainly characterised by hypertrophic pachymeningitis...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28421997/laser-microdissection-coupled-with-rna-seq-reveal-cell-type-and-disease-specific-markers-in-the-salivary-gland-of-sj%C3%A3-gren-s-syndrome-patients
#7
Mayank Tandon, Paola Perez, Peter D Burbelo, Catherine Calkins, Ilias Alevizos
OBJECTIVES: Little is known about the molecular details regarding the contribution of different cell types of the salivary gland to the altered gene expression profile seen in Sjögren's syndrome (SS). METHODS: Using laser microdissection, tissue samples enriched in acini, ducts and inflammatory foci in subjects with and without SS were isolated for RNA-seq analysis. Gene expression profiles were analysed and selected enriched genes were further examined using real time PCR and by immunofluorescence...
April 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28421993/increased-expression-of-interferon-%C3%AE-in-minor-salivary-glands-of-patients-with-primary-sj%C3%A3-gren-s-syndrome-and-its-synergic-effect-with-interferon-%C3%AE-on-salivary-gland-epithelial-cells
#8
You-Jung Ha, Yong Seok Choi, Eun Ha Kang, Jin-Haeng Chung, Seunghee Cha, Yeong Wook Song, Yun Jong Lee
OBJECTIVES: To investigate the expressions of interferon (IFN)-λs and their receptor, IL28RA, in minor salivary glands (MSG) of pSS patients and their effects on the salivary gland cells. METHODS: The expressions of IFN-λs and IL28RA were evaluated in MSG by immunohistochemistry in 15 patients with pSS and in 5 patients with non-SS sicca. Poly(I:C)-induced IL-28A and IL-29 expressions were determined in immortalized human salivary gland acinar (NS-SV-AC) and ductal (NS-SV-DC) cell lines...
April 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28421710/synovial-sarcoma-metastatic-to-the-parotid-gland-a-possible-pitfall-in-salivary-gland-fine-needle-aspiration-cytology-report-of-a-case-with-immunocytochemical-and-fluorescence-in-situ-hybridization-findings
#9
Franco Fulciniti, Jessica Barizzi, Vittoria Martin, Vittorio Tarallo, Stefano Ermanni
We report one case of metastatic synovial sarcoma (SS) to the parotid gland in a 93-year-old male. The patient had undergone upper left pulmonary lobectomy with mediastinal lymphadenectomy for SS of the lung 5 years before. The cytopathologic presentation and the immunocytochemical findings on the FNA sample were suggestive of a spindle cell myoepithelioma, while a SYT rearrangement was identified by a FISH performed on a cytological smear of the lesion. The diagnosis was further confirmed also by positive immunocytochemical expression of TLE1 on a section from the obtained cell block...
April 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28421044/comparative-genomics-of-glossina-palpalis-gambiensis-and-g-morsitans-morsitans-to-reveal-gene-orthologs-involved-in-infection-by-trypanosoma-brucei-gambiense
#10
Illiassou Hamidou Soumana, Bernadette Tchicaya, Stéphanie Rialle, Hugues Parrinello, Anne Geiger
Blood-feeding Glossina palpalis gambiense (Gpg) fly transmits the single-celled eukaryotic parasite Trypanosoma brucei gambiense (Tbg), the second Glossina fly African trypanosome pair being Glossina morsitans/T.brucei rhodesiense. Whatever the T. brucei subspecies, whereas the onset of their developmental program in the zoo-anthropophilic blood feeding flies does unfold in the fly midgut, its completion is taking place in the fly salivary gland where does emerge a low size metacyclic trypomastigote population displaying features that account for its establishment in mammals-human individuals included...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28419576/agreement-between-rapid-on-site-evaluation-and-the-final-cytological-diagnosis-of-salivary-gland-specimens
#11
S Wangsiricharoen, S Lekawanvijit, S Rangdaeng
OBJECTIVE: Rapid on-site evaluation (ROSE) has been shown to be beneficial in determining the adequacy and a preliminary diagnosis in multiple organ systems. However, little is known regarding the diagnostic values and agreement of ROSE compared with a final cytological diagnosis in salivary gland fine needle aspiration (FNA). The aim of the present study was to evaluate agreement and compare accuracy between ROSE and a final cytological diagnosis of salivary gland FNA, using a final histological diagnosis as a gold standard...
April 16, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28416688/knockout-of-the-lrrc26-subunit-reveals-a-primary-role-of-lrrc26-containing-bk-channels-in-secretory-epithelial-cells
#12
Chengtao Yang, Vivian Gonzalez-Perez, Taro Mukaibo, James E Melvin, Xiao-Ming Xia, Christopher J Lingle
Leucine-rich-repeat-containing protein 26 (LRRC26) is the regulatory γ1 subunit of Ca(2+)- and voltage-dependent BK-type K(+) channels. BK channels that contain LRRC26 subunits are active near normal resting potentials even without Ca(2+), suggesting they play unique physiological roles, likely limited to very specific cell types and cellular functions. By using Lrrc26 KO mice with a β-gal reporter, Lrrc26 promoter activity is found in secretory epithelial cells, especially acinar epithelial cells in lacrimal and salivary glands, and also goblet and Paneth cells in intestine and colon, although absent from neurons...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28415674/primary-sj%C3%A3-gren-s-syndrome-with-diffuse-cystic-lung-changes-developed-systemic-lupus-erythematosus-a-case-report-and-literature-review
#13
Xiao Liu, Hao Li, Yunhong Yin, Dedong Ma, Yiqing Qu
Sjögren's syndrome (SS) is a chronic inflammatory autoimmune disease that can occur as a unique existence (primary Sjögren's syndrome) or merge with other systemic diseases like systemic lupus erythematosus (SLE), rheumatoid arthritis or systemic sclerosis (secondary Sjögren's syndrome). Data on the two diseases occurrence order are inadequate. Primary Sjögren's syndrome (pSS) may relatively uncommonly lead to diffuse cystic lung changes. We represent a female who was diagnosed pSS with diffuse cystic lung alterations developed SLE two years later...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413869/salivary-duct-carcinoma-with-invasive-micropapillary-and-rhabdoid-feature-arising-in-the-submandibular-gland
#14
Mitsunobu Otsuru, Takayuki Aoki, Yusuke Kondo, Yoshihide Ota, Masashi Sasaki, Takatugu Suzuki, Go Ogura, Nobue Kumaki
Salivary duct carcinoma (SDC) is a high-grade malignant salivary gland tumor associated with poor prognosis, frequent recurrence, and metastasis. An 82-year-old man presented at the department of oral and maxillofacial surgery at Tokai University Hospital with a painless swelling in the right submandibular region that had been there for 20 years. On presentation, an elastic hard tumor, 50 × 50 mm in size, was observed in the submandibular region. Diagnostic imaging was performed, and a malignant tumor in the submandibular gland was suspected...
April 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28413396/mammary-analogue-secretory-carcinoma-presenting-as-a-cervical-lymph-node-metastasis-of-unknown-primary-site-a-case-report
#15
Kensuke Suzuki, Masao Yagi, Akira Kanda, Yoshiki Kobayashi, Masaya Konishi, Chika Miyasaka, Takashi Tashiro, Hiroshi Iwai
BACKGROUND: Mammary analogue secretory carcinoma (MASC) is a pathological entity arising in the salivary glands first described by Skalova et al. [Am J Surg Pathol 2010;34: 599-608]. Here, we report the first case of MASC presenting as a cervical lymph node metastasis of unknown primary site together with a brief review of the literature. CASE REPORT: We present a 74-year-old male with a painless lump in his left neck. Based on the fine-needle aspiration cytological findings, a possible malignant tumor was suspected...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28412788/-guidelines-for-the-use-of-sialendoscopy-in-salivary-gland-diseases
#16
(no author information available yet)
Salivary gland disease is a common disease in oral clinical care. Sialendoscopy technique has been widely used in salivary gland disease in recent years. Compared with traditional treatment, it is a safe, minimally-invasive and cost-effective technique, thus presenting significant benefits both for the patient and the health-care system. As for providing a comprehensive and updated source of current information on sialendoscopy, it's important to standardize the operating processes for salivary gland sialendoscopy...
April 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28412212/mucoepidermoid-carcinoma-with-extensive-spindled-morphology-and-melanocytic-marker-expression
#17
Takashi Oide, Kenzo Hiroshima, Yoko Takahashi, Kazunori Fugo, Masanobu Yamatoji, Atsushi Kasamatsu, Yosuke Endo-Sakamoto, Masashi Shiiba, Katsuhiro Uzawa, Hideki Tanzawa, Toshitaka Nagao, Yukio Nakatani
Mucoepidermoid carcinoma (MEC) is the most common malignant neoplasm of the salivary gland. Albeit common, histological variants have rarely been noted in MEC. Here, we report a 49-year-old man with a sublingual gland tumor. Histologically, the tumor was composed of spindle cells arranged in interlacing fascicules or globular nests. A few bland small glands containing mucous cells were also scattered. The spindle tumor cells completely lacked immunoreactivity for cytokeratin, and exhibited immunoreactivity for vimentin, S-100, HMB-45, Melan A, and SOX10...
April 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28411963/using-a-knowledge-based-planning-solution-to-select-patients-for-proton-therapy
#18
Alexander R Delaney, Max Dahele, Jim P Tol, Ingrid T Kuijper, Ben J Slotman, Wilko F A R Verbakel
BACKGROUND AND PURPOSE: Patient selection for proton therapy by comparing proton/photon treatment plans is time-consuming and prone to bias. RapidPlan™, a knowledge-based-planning solution, uses plan-libraries to model and predict organ-at-risk (OAR) dose-volume-histograms (DVHs). We investigated whether RapidPlan, utilizing an algorithm based only on photon beam characteristics, could generate proton DVH-predictions and whether these could correctly identify patients for proton therapy...
April 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28411466/capillary-isoelectric-focusing-with-whole-column-imaging-detection-icief-a-new-approach-to-the-characterization-and-quantification-of-salivary-%C3%AE-amylase
#19
Atefeh S Zarabadi, Tiemin Huang, John G Mielke
Saliva is an easily collected biological fluid with potentially important diagnostic value. While gel electrophoresis is generally used for salivary analysis, we employed the capillary isoelectric focusing technique to allow for a rapid, automated mode of electrophoresis. Capillary isoelectric focusing coupled with UV whole column imaging detection (iCIEF) was used to develop a robust protocol to characterize salivary α-amylase collected from various glands. Notably, three sample preparation methods were examined: ultrafiltration, gel-filtration, and starch affinity interaction with salivary amylase...
March 30, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28411379/ancillary-testing-strategies-in-salivary-gland-aspiration-cytology-a-practical-pattern-based-approach
#20
REVIEW
Christopher C Griffith, Momin T Siddiqui, Alessandra C Schmitt
Fine needle aspiration of salivary gland tumors is a common preoperative triage as it is useful in determining which patients should undergo surgical resection and in guiding the extent of surgery in those cases deemed appropriate for resection. While a specific diagnosis can be achieved on a cytologic specimen in many cases, there is also a considerable amount of morphologic diversity that prevents such confident preoperative classification and in these cases it can be a challenge to confidently determine if a tumor is benign or malignant...
April 14, 2017: Diagnostic Cytopathology
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