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https://www.readbyqxmd.com/read/28423984/congenital-amelanotic-melanoma-in-a-crossbred-heifer-calf
#1
Christine M Winslow, Jason Wood, John N Gilliam, Melanie A Breshears
A large, pedunculated cutaneous mass protruding from the left flank fold and an enlarged left prefemoral lymph node were found on examination of a 3-d-old crossbred Aberdeen Angus heifer. The calf was asymptomatic aside from peripheral lymphadenopathy, and the mass, along with the left prefemoral lymph node, was surgically excised. Histologic examination of the mass and the lymph node revealed a homogeneous population of neoplastic cells that stained positively with immunohistochemical stains S100 and melan A, supporting a diagnosis of congenital amelanotic melanoma with nodal metastasis...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28423501/epigenetic-silencing-of-mir-520c-leads-to-induced-s100a4-expression-and-its-mediated-colorectal-cancer-progression
#2
Giridhar Mudduluru, Katharina Ilm, Steffen Fuchs, Ulrike Stein
The S100 calcium-binding protein A4 (S100A4) induces epithelial mesenchymal transition, migration, invasion, angiogenesis and metastasis. Its induced expression in several cancer types correlates with poor prognosis. Apart from the functional and transcriptional regulatory aspects of S100A4, its post-transcriptional regulation is not yet clearly elucidated. In this study, we show that microRNAs (miR) miR-505-5p and miR-520c-3p target the 3'-UTR of S100A4 and inhibits its expression and its mediated migration and invasion...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418321/s100a10-identified-in-a-genome-wide-gene-%C3%A3-cannabis-dependence-interaction-analysis-of-risky-sexual-behaviours
#3
Renato Polimanti, Shashwath A Meda, Godfrey D Pearlson, Hongyu Zhao, Richard Sherva, Lindsay A Farrer, Henry R Kranzler, Joel Gelernter
BACKGROUND: We conducted a genome-wide gene × environment interaction analysis to identify genetic variants that interact with cannabis dependence (CaD) in influencing risky sexual behaviours (RSB). METHODS: Our sample included cannabis-exposed and sexually experienced African-American and European-American participants. A DSM-IV CaD diagnosis and RSB were evaluated using the Semi-Structured Assessment for Drug Dependence and Alcoholism. We analyzed RSBs as a score that takes into account experiences of unprotected sex and multiple sexual partners...
April 13, 2017: Journal of Psychiatry & Neuroscience: JPN
https://www.readbyqxmd.com/read/28417162/s100a6-protein-functional-roles
#4
REVIEW
Rosario Donato, Guglielmo Sorci, Ileana Giambanco
S100A6 protein belongs to the A group of the S100 protein family of Ca(2+)-binding proteins. It is expressed in a limited number of cell types in adult normal tissues and in several tumor cell types. As an intracellular protein, S100A6 has been implicated in the regulation of several cellular functions, such as proliferation, apoptosis, the cytoskeleton dynamics, and the cellular response to different stress factors. S100A6 can be secreted/released by certain cell types which points to extracellular effects of the protein...
April 17, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28413396/mammary-analogue-secretory-carcinoma-presenting-as-a-cervical-lymph-node-metastasis-of-unknown-primary-site-a-case-report
#5
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/28413206/differential-diagnostic-significance-of-hbme-1-ck19-and-s100-in-various-thyroid-lesions
#6
S Palo, D S Biligi
OBJECTIVE: Due several overlapping histomorphological features and pitfalls in thyroid pathology, there is need to establish a panel of immunomarkers that would aid in proper diagnosis. This study was carried out to investigate the ability of HBME-1, CK19, and S100 in differentiating between hyperplastic, benign and malignant thyroid lesions. MATERIALS AND METHODS: Immunohistochemical analysis of 60 thyroidectomy specimens (10 hyperplastic nodules, 14 follicular adenomas and 36 malignant thyroid neoplasms) was carried out...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28408431/molecular-basis-for-the-interaction-between-stress-inducible-phosphoprotein-1-stip1-and-s100a1
#7
Andrzej Maciejewski, Vania F Prado, Marco A M Prado, Wing-Yiu Choy
Stress-inducible phosphoprotein 1 (STIP1) is a cellular co-chaperone, which regulates Hsp70 and Hsp90 activity during client protein folding. Members of the S100-family of dimeric calcium binding proteins have been found to inhibit Hsp association with STIP1 through binding of STIP1 tetratricopeptide repeat (TPR) domains, possibly regulating the chaperone cycle. Here we investigated the molecular basis of S100A1 binding to STIP1. We show that three S100A1 dimers associate with one molecule of STIP1 in a calcium-dependent manner...
April 13, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28407623/fine-needle-aspiration-of-langerhans-cell-histiocytosis-a-cytopathologic-study-of-37-cases
#8
Jen-Fan Hang, Momin T Siddiqui, Syed Z Ali
OBJECTIVE: Langerhans cell histiocytosis (LCH) is an uncommon neoplasm of dendritic cells and predominantly occurs in children and young adults. The study aims to evaluate cytopathologic features and current diagnostic concepts in a large series of LCH on fine needle aspiration (FNA). STUDY DESIGN: We retrospectively searched the pathology archives of The Johns Hopkins Hospital (JHH) and Emory University Hospital (EUH) to identify all FNA cases diagnosed as LCH in a period of 21 years...
April 14, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28407046/rage-mediated-extracellular-matrix-proteins-accumulation-exacerbates-hysu-induced-pulmonary-hypertension
#9
Daile Jia, Yuhu He, Qian Zhu, Huan Liu, Caojian Zuo, Guilin Chen, Ying Yu, Ankang Lu
Aims: Extracellular matrix (ECM) proteins accumulation contributes to the progression of pulmonary arterial hypertension (PAH), a rare and fatal cardiovascular condition defined by high pulmonary arterial pressure, whether primary, idiopathic, or secondary to other causes. The receptor for advanced glycation end products (RAGE) is constitutively expressed in the lungs and plays an important role in ECM deposition. Nonetheless, the mechanisms by which RAGE mediates ECM deposition/formation in pulmonary arteries and its roles in PAH progression remain unclear...
April 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28403573/desmoplastic-melanoma-may-mimic-a-cutaneous-peripheral-nerve-sheath-tumor-report-of-three-challenging-cases
#10
Isidro Machado, Beatriz Llombart, Julia Cruz, Víctor Traves, Celia Requena, Eduardo Nagore, Antonina Parafioriti, Carlos Monteagudo, Antonio Llombart-Bosch
Desmoplastic melanoma (DM) and cutaneous malignant peripheral nerve sheath tumors (MPNST) reveal histological and immunohistochemical similarities, including S100 positivity and negative staining for conventional melanocytic markers. We present three cases of cutaneous S100-positive spindle cell tumors in elderly patients, in which first findings led to initial misdiagnoses as cutaneous MPNST and benign peripheral sheath nerve tumor (neurofibroma). The identification of adjacent atypical melanocytic hyperplasia in the overlying skin along with tumor cell proliferation, also in the superficial dermis, the neurotropic component and the absence of any relationship between the tumor and a major nerve, pre-existing neural benign tumor or the existence of stigmata suggestive of neurofibromatosis raised consideration of a desmoplastic melanoma...
April 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28398953/s100p-as-a-marker-for-urothelial-histogenesis-a-critical-review-and-comparison-with-novel-and-traditional-urothelial-immunohistochemical-markers
#11
REVIEW
Moushumi Suryavanshi, Julian Sanz-Ortega, Deepika Sirohi, Mukul K Divatia, Chisato Ohe, Claudia Zampini, Daniel Luthringer, Steven C Smith, Mahul B Amin
S100P, or placental S100, is a member of a large family of S100 proteins and considered to be a promising immunohistochemical marker to support urothelial differentiation. This review synthesizes published data regarding the expression of S100P in urothelial carcinoma across histological grade and variant patterns, and in other malignancies, in an effort to summarize the state of understanding of this marker and evaluate its potential. We provide also a broad comparison of S100P with other contemporary and traditional urothelial markers and outline the potential utility of S100P in various diagnostically challenging scenarios...
May 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28398921/hemosiderotic-juvenile-xanthogranuloma
#12
Angel Fernandez-Flores, Ina Nicklaus, Fiona Browne, Isabel Colmenero
Juvenile xanthogranuloma is a non-Langerhans cell lesion mostly limited to the skin but occasionally presenting in extracutaneous locations or associated with systemic conditions. Lesions need to be distinguished mainly from dermatofibroma, xanthoma, Langerhans cell histiocytosis, or reticulohistiocytoma. Herein, we present a hemosiderotic variant of juvenile xanthogranuloma in a 12-year-old girl, which we have not found described in literature. The lesion presented at the back of the scalp as a slowly growing yellowish polypoid lesion showing occasional bleeding...
March 16, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28396871/innervation-of-the-human-cavum-conchae-and-auditory-canal-anatomical-basis-for-transcutaneous-auricular-nerve-stimulation
#13
P Bermejo, M López, I Larraya, J Chamorro, J L Cobo, S Ordóñez, J A Vega
The innocuous transcutaneous stimulation of nerves supplying the outer ear has been demonstrated to be as effective as the invasive direct stimulation of the vagus nerve for the treatment of some neurological and nonneurological disturbances. Thus, the precise knowledge of external ear innervation is of maximal interest for the design of transcutaneous auricular nerve stimulation devices. We analyzed eleven outer ears, and the innervation was assessed by Masson's trichrome staining, immunohistochemistry, or immunofluorescence (neurofilaments, S100 protein, and myelin-basic protein)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28395933/electroacupuncture-improves-neurobehavioral-function-and-brain-injury-in-rat-model-of-intracerebral-hemorrhage
#14
Yan Zhu, Li Deng, Huajun Tang, Xiaoqing Gao, Youhua Wang, Kan Guo, Jiming Kong, Chaoxian Yang
Acupuncture has been widely used as a treatment for stroke in China for a long time. Recently, studies have demonstrated that electroacupuncture (EA) can accelerate intracerebral hemorrhage (ICH)-induced angiogenesis in rats. In the present study, we investigated the effect of EA on neurobehavioral function and brain injury in ICH rats. ICH was induced by stereotactic injection of collagenase type I and heparin into the right caudate putamen. Adult ICH rats were randomly divided into the following three groups: model control group (MC), EA at non-acupoint points group (non-acupoint EA) and EA at Baihui and Dazhui acupoints group (EA)...
April 7, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28393239/psoriasin-promotes-invasion-aggregation-and-survival-of-pancreatic-cancer-cells-association-with-disease-progression
#15
Ying Liu, Carly Bunston, Nicholas Hodson, Jeyna Resaul, Ping-Hui Sun, Shuo Cai, Gang Chen, Yanan Gu, Lucy K Satherley, David C Bosanquet, Bilal Al-Sarireh, Xiuyun Tian, Chunyi Hao, Wen G Jiang, Lin Ye
Psoriasin (S100A7) is an 11-kDa small calcium binding protein initially isolated from psoriatic skin lesions. It belongs to the S100 family of proteins which play an important role in a range of cell functions including proliferation, differentiation, migration and apoptosis. Aberrant Psoriasin expression has been implicated in a range of cancers and is often associated with poor prognosis. This study examined the role of Psoriasin on pancreatic cancer cell functions and the implication in progression of the disease...
May 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28391972/neuroaxonal-dystrophy-in-a-flock-of-pied-imperial-pigeons-ducula-bicolor
#16
M Barrows, R Killick, C Day, R Saunders, K Baiker, L Ressel, D Denk
Five juvenile pied imperial pigeons (Ducula bicolor) presented with neurological signs including torticollis, ataxia and poor flying ability. All were humanely destroyed and submitted for post-mortem examination. Microscopically, the most significant findings were in the brain and spinal cord. Spheroid formation was evident within the medulla, pons, diencephalon, cortical grey and subcortical white matter, spinal cord white and grey matter and the granular and molecular cell layers of the cerebellum. There was no evidence of associated inflammation...
April 6, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28386459/pathogenesis-of-warthin-s-tumors
#17
REVIEW
Yevhen V Kuzenko, Anatoly M Romanuk, Olena Olegivna Dyachenko, Olena Hudymenko
INTRODUCTION: Warthin's tumor, also known as papillary cystadenoma lymphomatosum, monomorphic adenoma, or adenolymphoma, is a benign cystic tumor of the salivary glands containing abundant lymphocytes and lymph node-like stroma. It is named after the pathologist Aldred Scott Warthin, who described two cases in 1929. OBJECTIVE: The aim of this study is to analyze the pathogenesis of Warthin's tumor. METHODS: A total of 15 patients with Warthin's tumor were studied...
June 1, 2016: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28385770/s100-proteins-in-aml-differentiation-and-beyond
#18
Jerome Tamburini
No abstract text is available yet for this article.
April 6, 2017: Blood
https://www.readbyqxmd.com/read/28382581/the-prominent-proteins-expressed-in-healthy-gingiva-a-pilot-exploratory-tissue-proteomics-study
#19
Emre Yaprak, Murat Kasap, Gürler Akpınar, Sibel Kayaaltı-Yüksek, Alper Sinanoğlu, Nil Guzel, Husniye Demirturk Kocasarac
Gingiva is a unique tissue which protects the underlying periodontal tissues from consistent mechanical and bacterial aggressions. Molecular analysis of gingiva is likely to improve our understanding of the underlying biological processes at work. The aim of this preliminary exploratory study is to analyze the proteomic profile of healthy gingiva and to detect prominently expressed proteins. Gingival tissue samples were obtained from periodontally healthy individuals who underwent surgical crown lengthening procedure...
April 5, 2017: Odontology
https://www.readbyqxmd.com/read/28381111/spontaneous-spinal-plexiform-perineurioma-in-a-juvenile-chicken-gallus-domesticus
#20
Lara Cusack, Uriel Blas-Machado, Joerg Mayer
A 2-mo-old pet chicken ( Gallus domesticus) was presented because of lameness and a hind limb mass of 1 mo duration. Radiographs revealed a soft tissue mass extending from the mid-femur into the body wall. Cytology of a sample obtained from a fine-needle aspirate was unremarkable. The bird was prepared for surgical investigation of the mass but died acutely at the time of pre-medication. Autopsy revealed an extradural mesenchymal neoplasm that focally compressed the lumbar spinal cord, extended into and along the adjacent nerve structures, and displaced the kidneys, skeletal muscle, and body wall...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
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