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https://www.readbyqxmd.com/read/29456851/duodenal-mucinous-adenocarcinoma-presenting-as-ileus-obstructive-jaundice-and-massive-ascites-a-case-report
#1
Dongbing Ding, Yao Yao, Songbai Zhang
Duodenal mucinous adenocarcinoma (DMA) is a malignancy with a rather low morbidity. However, its incidence in China has not been clearly determined. We herein report a case of a 70-year-old female patient who presented with ileus, obstructive jaundice and massive ascites simultaneously. Gastroendoscopy revealed copious amounts of colloidal mucin in the gastric cavity. The neoplasm was not visualized on computed tomography or magnetic resonance imaging, and an exploratory laparotomy was performed to investigate the abdomen...
March 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29449726/primary-well-differentiated-neuroendocrine-tumor-of-ovary-collides-with-mucinous-borderline-tumor-in-a-postmenopausal-female-a-report-of-case-and-review-of-literature
#2
M Shahid, A Siddiqi
Collision tumors represent a coexistence of two adjacent but histologically distinct tumors without histologic admixture in an organ. Primary well differentiated neuroendocrine tumor of ovary is rare and coexistent borderline mucinous tumor makes this association extremely rare. Although these tumors have been reported in other organs, its occurrence in ovary is rare. Collision tumor comprising primary neuroendocrine tumor of ovary and mucinous borderline tumor is an extremely rare occurrence. Here we report a case of this collision tumor in a postmenopausal female...
December 2017: Pathologica
https://www.readbyqxmd.com/read/29442331/role-of-zic-family-proteins-in-transcriptional-regulation-and-chromatin-remodeling
#3
Minoru Hatayama, Jun Aruga
Proper functions of Zic proteins are essential for animals in health and disease. Here, we summarize our current understanding of the molecular properties and functions of the Zic family across animal species and paralog subtypes. Zics are basic proteins with some posttranslational modifications and can move to the cell nucleus via importin- and CRM1-based nucleocytoplasmic shuttling mechanisms. Degradation is mediated by the ubiquitin proteasome system. Many Zic proteins are capable of binding to two types of target DNA sequences (CTGCTG-core-type and GC-stretch-type)...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29440171/crosstalk-signaling-between-her3-and-hpv16-e6-and-e7-mediates-resistance-to-pi3k-inhibitors-in-head-and-neck-cancer
#4
Toni M Brand, Stefan Hartmann, Neil E Bhola, Hua Li, Yan Zang, Rachel A O'Keefe, Max V Ranall, Sourav Bandyopadhyay, Margaret Soucheray, Nevan J Krogan, Carolyn Kemp, Umamaheswar Duvvuri, Theresa LaVallee, Daniel E Johnson, Michelle A Ozbun, Julie E Bauman, Jennifer R Grandis
Human papillomavirus (HPV) type 16 is implicated in approximately 75% of head and neck squamous cell carcinomas (HNSCC) that arise in the oropharynx, where viral expression of the E6 and E7 oncoproteins promote cellular transformation, tumor growth, and maintenance. An important oncogenic signaling pathway activated by E6 and E7 is the phosphatidylinositol 3-kinase (PI3K) pathway, a key driver of carcinogenesis. The PI3K pathway is also activated by mutation or amplification of PIK3CA in over half of HPV(+) HNSCC...
February 12, 2018: Cancer Research
https://www.readbyqxmd.com/read/29433421/the-distribution-of-three-candidate-cold-resistant-snps-in-six-minorities-in-north-china
#5
Qiuyan Li, Kexian Dong, Lidan Xu, Xueyuan Jia, Jie Wu, Wenjing Sun, Xuelong Zhang, Songbin Fu
BACKGROUND: Heilongjiang Province located in northeast China is a multi-ethnic region with people who have lived in cold conditions for several generations. Fatty acids are important to people with cold resistance. CPT1A encodes a protein that imports long-chain fatty acids into the mitochondria for fatty-acid oxidation. FADS is an essential enzyme for the synthesis of long-chain polyunsaturated fatty acids. RESULTS: In the present study, we investigated the distributions of three cold resistance-related SNPs (rs80356779 G > A in CPT1A, rs7115739 T > G in FADS3 and rs174570 C > T in FADS2) from six populations that included 1093 individuals who have lived in Heilongjiang Province for at least three generations...
February 12, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29425647/predicting-tyrosinase-inhibition-by-3d-qsar-pharmacophore-models-and-designing-potential-tyrosinase-inhibitors-from-traditional-chinese-medicine-database
#6
Hongwei Gao
BACKGROUND: Tyrosinase plays a key role in the formation of skin melanin. The excessive accumulation of skin melanin will cause the serious aesthetic problems for human beings. HYPOTHESIS/PURPOSE: To find the potent tyrosinase inhibitors using computational simulation from TCM Database@Taiwan. STUDY DESIGN: Inhibitors of tyrosinase have been thought as potential drugs for the decrease of melanin synthesis in the process of pigmentation. To develop new tyrosinase inhibitors, we performed a virtual screening from Traditional Chinese medicine (TCM) and Druglike Databases using the best 3D QSAR pharmacophore model as a 3D search query...
January 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29341470/cytological-features-of-mixed-adenoneuroendocrine-carcinoma-of-the-ampulla-of-vater-a-case-report-with-immunocytochemical-analyses
#7
Saya Yoshioka, Yusuke Ebisu, Mitsuaki Ishida, Yoshiko Uemura, Hiroaki Yanagimoto, Sohei Satoi, Koji Tsuta
Mixed adenoneuroendocrine carcinoma (MANEC) is defined as a tumor that has morphologically recognizable both adenocarcinoma and neuroendocrine carcinoma components comprising at least 30% of either components. MANEC occurring in the ampulla of Vater is extremely rare, and only 16 cases have been reported in the English language literature. In the present report, we describe the first case of MANEC of the ampulla of Vater with immunocytochemical analyses. An 82-year-old Japanese male was incidentally found to have a tumorous lesion in the ampulla of Vater...
January 16, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29339175/primary-thymic-adenocarcinomas-a-clinicopathological-and-immunohistochemical-study-of-16-cases-with-emphasis-on-the-morphological-spectrum-of-differentiation
#8
Neda Kalhor, Cesar A Moran
Sixteen cases of primary thymic adenocarcinoma are presented. The patients are 9 men and 7 women between the ages of 22 and 68 years (average: 45 years) who presented with non-specific symptoms including cough, chest pain, and dyspnea. Diagnostic imaging revealed the presence of an anterior mediastinal mass, which was surgically removed in all of the patients. Histologically, none of the tumors was encapsulated and showed different growth patterns including mucinous, non-mucinous, and papillary features. The majority of cases showed mixed growth pattern and the tumor was limited to the mediastinum with only a few cases extending to lymph nodes or pericardium...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29243296/role-of-conventional-immunomarkers-hnf4-a-and-satb2-in-the-differential-diagnosis-of-pulmonary-and-colorectal-adenocarcinomas
#9
Mark Kriegsmann, Alexander Harms, Rémi Longuespée, Thomas Muley, Hauke Winter, Katharina Kriegsmann, Daniel Kazdal, Benjamin Goeppert, Anita Pathil, Arne Warth
OBJECTIVE: Pulmonary (ADC) and colorectal (CRC) adenocarcinomas are frequent entities in pathological routine diagnostics. Whereas the differential diagnosis is usually straight forward based on histomorphology, it can be challenging in small biopsies. In general, CDX-2, CK20, Napsin-A, and TTF-1 are recommended immunohistological markers in this scenario. Hepatocyte nuclear factor 4 alpha (HNF4-a) and special AT-rich sequence-binding protein 2 (SATB2) were recently described as promising additional markers, but comprehensive large scale data are lacking so far...
December 15, 2017: Histopathology
https://www.readbyqxmd.com/read/29202657/a-case-of-gastric-cancer-metastasis-to-the-breast-in-a-female-with-brca2-germline-mutation-and-literature-review
#10
Audrius Dulskas, Mahdi Al Bandar, Yoon Young Choi, Su-Jin Shin, Seung-Hoon Beom, Taeil Son, Hyung-Il Kim, Jae-Ho Cheong, Woo Jin Hyung, Sung Hoon Noh
INTRODUCTION: Gastric cancer is a deadly disease. Common sites of distant metastasis of gastric cancer are the peritoneum, liver, lymph nodes, and lung. The breast is a rare site of metastasis in gastric cancer which occurs in males dominantly. PATIENTS AND METHODS: Here, we report the first case of metastatic gastric cancer to the breast in a patient with the breast cancer 2 (BRCA2) germline mutation. A 34-year-old female was admitted to the hospital with dyspepsia and a palpable mass in the left breast...
December 5, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29146734/humanized-mice-in-studying-efficacy-and-mechanisms-of-pd-1-targeted-cancer-immunotherapy
#11
Minan Wang, Li-Chin Yao, Mingshan Cheng, Danying Cai, Jan Martinek, Chong-Xian Pan, Wei Shi, Ai-Hong Ma, Ralph W De Vere White, Susan Airhart, Edison T Liu, Jacques Banchereau, Michael A Brehm, Dale L Greiner, Leonard D Shultz, Karolina Palucka, James G Keck
Establishment of an in vivo small animal model of human tumor and human immune system interaction would enable preclinical investigations into the mechanisms underlying cancer immunotherapy. To this end, non-obese diabetic (NOD).Cg-Prkdc(scid)IL2rg(tm1Wjl) /Sz (null; NSG) mice were transplanted with human (h)CD34(+) hematopoietic progenitor and stem cells, which leads to the development of human hematopoietic and immune systems [humanized NSG (HuNSG)]. HuNSG mice received human leukocyte antigen partially matched tumor implants from patient-derived xenografts [PDX; nonsmall cell lung cancer (NSCLC), sarcoma, bladder cancer, and triple-negative breast cancer (TNBC)] or from a TNBC cell line-derived xenograft (CDX)...
November 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29133857/pdgfr-modulated-mir-23b-cluster-and-mir-125a-5p-suppress-lung-tumorigenesis-by-targeting-multiple-components-of-kras-and-nf-kb-pathways
#12
Srivatsava Naidu, Lei Shi, Peter Magee, Justin D Middleton, Alessandro Laganá, Sudhakar Sahoo, Hui Sun Leong, Melanie Galvin, Kristopher Frese, Caroline Dive, Vincenza Guzzardo, Matteo Fassan, Michela Garofalo
In NSCLC alterations in PDGF receptors are markers of worst prognosis and efficient targeting of these receptors is yet to be achieved. In this study, we explored PDGFR-regulated microRNAs demonstrating that miR-23b cluster and miR-125a-5p are downregulated by increased expression of PDGFR-α or PDGFR-β in NSCLC cells. Mechanistically, the expression of these microRNAs is positively regulated by p53 and negatively modulated by NF-kB p65. Forced expression of miR-23b cluster or miR-125a-5p enhanced drug sensitivity and suppressed invasiveness of NSCLC cells by silencing several genes involved in oncogenic KRAS and NF-kB pathways, including SOS1, GRB2, IQGAP1, RALA, RAF-1, IKKβ, AKT2, ERK2 and KRAS itself...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29128634/vitamin-d-receptor-vdr-polymorphisms-are-associated-to-spontaneous-preterm-birth-and-maternal-aspects
#13
N R Javorski, C A D Lima, L V C Silva, S Crovella, J de Azêvedo Silva
Preterm birth (PTB) is featured by less than 37weeks of gestational age or fewer than 259days since the first day from the last menstrual period. Complications of PTB are the major cause of neonatal deaths, several factors are linked to PTB increased risk including immunological and genetics. Vitamin D plays an important role in immune response modulation and its action occurs through the vitamin D receptor (VDR), which recently has been described as overexpressed in human placenta during the pregnancy. Herein we assessed two single nucleotide polymorphisms (SNPs) FokI (rs2228570 A>G) and Cdx-2 (rs11568820 T>C), within VDR, using TaqMan fluorogenic probes, and differential susceptibility to SPTB...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29094201/a-review-of-genetic-factors-contributing-to-the-etiopathogenesis-of-anorectal-malformations
#14
REVIEW
Kashish Khanna, Shilpa Sharma, Noel Pabalan, Neetu Singh, D K Gupta
BACKGROUND: Anorectal malformation (ARM) is a common congenital anomaly with a wide clinical spectrum. Recently, many genetic and molecular studies have been conducted worldwide highlighting the contribution of genetic factors in its etiology. We summarize the current literature on such genetic factors. MATERIALS AND METHODS: Literature search was done using different combinations of terms related to genetics in anorectal malformations. From 2012 to June 2017, articles published in the English literature and studies conducted on human population were included...
November 1, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29034982/bonding-scheme-and-optical-properties-in-bim2-o2-po4-m-cd-mg-zn-experimental-and-theoretical-analysis
#15
J Olchowka, O Mentré, H Kabbour, M Colmont, M Adlung, M Suta, C Wickleder
Luminescence properties of the Bi(M,M')2 PO6 (M=Mg, Zn, Cd) series have been rationalized as a function of the M element using optical spectroscopy, as well as empirical and first principles calculations. The latter yielded indirect band gaps for all compounds with energies between 2.64 and 3.62 eV, whereas luminescence measurements exhibit bright warm white emission luminescence even at room temperature assigned to Bi(3+) transitions with, for example, 22.8 % quantum yield for M=Mg. The energies of the excitation maxima are shifted with the covalent character of the Bi-O bond by inductive effects of the neighboring M-O bonds...
October 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29027178/mechanisms-of-regulation-of-normal-and-metaplastic-intestinal-differentiation
#16
REVIEW
Jaime P Rodrigues, Leonor David, Raquel Almeida, Rita Barros, Teresa Freitas, Joana Silva, Ana Ponte, Mafalda Sousa, João Carlos Silva, João Carvalho
The gastrointestinal tract is an organized structure originating from the three embryonic germ layers: endoderm, mesoderm and ectoderm. Morphological changes that accompany its formation are relatively well known, although the underlying molecular mechanisms are still poorly defined. Intestinal metaplasia, resulting from an epithelial transdifferentiation process, is considered a precursor lesion of gastric adenocarcinoma, a malignancy with serious consequences in terms of morbidity and mortality worldwide...
October 13, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/29017512/metastatic-pathway-and-the-microvascular-and-physicochemical-microenvironments-of-human-melanoma-xenografts
#17
Ruixia Huang, Lise Mari K Andersen, Einar K Rofstad
BACKGROUND: Malignant melanoma of the skin can metastasize through blood vessels and lymphatics. The primary tumor develops a vascular microenvironment characterized by abnormal blood vessels and lymphatics and a physicochemical microenvironment characterized by low oxygen tension, regions with hypoxic tissue, and high interstitial fluid pressure (IFP). This study aimed at identifying relationships between the metastatic route of melanomas and characteristic features of the microvascular and physicochemical microenvironments of the primary tumor...
October 10, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28984338/synchronous-cervical-minimal-deviation-adenocarcinoma-gastric-type-adenocarcinoma-and-lobular-endocervical-glandular-hyperplasia-along-with-stil-in-peutz-jeghers-syndrome-eliciting-oncogenesis-pathways
#18
Azfar Neyaz, Nuzhat Husain, Manish Deodhar, Rohini Khurana, Saumya Shukla, Aditi Arora
We describe an unusual case of a Peutz-Jeghers syndrome associated with a composite synchronous cervical neoplasia comprising precursor "lobular endocervical glandular hyperplasia (LEGH)", "minimal deviation adenocarcinoma (MDA)" and "gastric-type adenocarcinoma (GTA)" along with a serous tubal intraepithelial lesion (STIL) in the right fallopian tube. A 24-year-old woman presented with a white mucoid discharge and bleeding per vaginum for one year. Histopathological evaluation showed MDA & GTA in FIGO grade III with pelvic lymph node metastasis despite a deceptively bland tumour morphology and low Ki-67 index, indicating an aggressive tumour course and poor prognosis...
October 6, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28969003/combination-of-cadherin-17-and-satb-homeobox-2-serves-as-potential-optimal-makers-for-the-differential-diagnosis-of-pulmonary-enteric-adenocarcinoma-and-metastatic-colorectal-adenocarcinoma
#19
Tingting Bian, Jinli Zhao, Jia Feng, Qing Zhang, Li Qian, Jian Liu, Daishan Jiang, Yifei Liu, Jianguo Zhang
BACKGROUND: Pulmonary enteric adenocarcinoma (PEAC), a rare type of non-small cell lung cancer, has similar histological and immunohistochemical morphology to colorectal adenocarcinoma. Cadherin-17 (CDH17) and SATB homeobox 2 (SATB2) immunoexpression have recently been demonstrated in colorectal adenocarcinoma. In this study, we evaluated the value of CDH17 and SATB2 in the diagnosis of pulmonary enteric adenocarcinoma and metastatic colorectal adenocarcinoma. METHODS: A total of 13 PEAC cases and 27 metastatic colorectal adenocarcinoma cases were enrolled in our cohort study...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28947565/ny-eso-1-vaccination-in-combination-with-decitabine-induces-antigen-specific-t-lymphocyte-responses-in-patients-with-myelodysplastic-syndrome
#20
Elizabeth A Griffiths, Pragya Srivastava, Junko Matsuzaki, Zachary Brumberger, Eunice S Wang, Justin Kocent, Austin Miller, Gregory W Roloff, Hong Yuen Wong, Benjamin E Paluch, Linda G Lutgen-Dunckley, Brandon L Martens, Kunle Odunsi, Adam R Karpf, Christopher S Hourigan, Michael J Nemeth
PURPOSE: Treatment options are limited for patients with high-risk myelodysplastic syndrome (MDS). The azanucleosides, azacitidine and decitabine, are front-line therapy for MDS that induce promoter demethylation and gene expression of the highly immunogenic tumor antigen NY-ESO-1. We demonstrated that AML patients receiving decitabine exhibit induction of NY-ESO-1 expression in circulating blasts. We hypothesized that vaccinating against NY-ESO-1 in MDS patients receiving decitabine would capitalize upon induced NY-ESO-1 expression in malignant myeloid cells to provoke an NY-ESO-1-specific-MDS directed cytotoxic T-cell immune response...
September 25, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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