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Pathology, Research and Practice

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https://www.readbyqxmd.com/read/28285969/expression-of-vav3-protein-and-its-prognostic-value-in-patients-with-gastric-cancer
#1
Bibo Tan, Yong Li, Xiaoming Shi, Liqiao Fan, Qun Zhao, Yanli Liu, Ming Tan, Qingwei Liu, Nan Jia
Vav3 is associated with tumor growth, apoptosis, invasion, metastasis and angiogenesis. In this study, we detected the expression of Vav3 in gastric cancer tissues, and explored its role in invasion, metastasis and prognosis of gastric cancer. Vav3, MMP-2, MMP-9, TIMP-1 and TIMP-2 in primary lesion and pericarcinous tissues were tested with Immunohistochemistry and Western blot. Results showed a higher expression of Vav3 in primary lesion than in pericarcinous tissue, and the expression of Vav3 was significantly correlated with MMP-2, MMP-9 and TIMP-1 in gastric cancer tissues...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285968/histologic-factors-predicting-invasion-in-patients-with-ductal-carcinoma-in-situ-dcis-in-the-preoperative-core-biopsy
#2
Areej M Al Nemer
BACKGROUND: It is desirable to decrease the underestimation rate of invasion in cases diagnosed as ductal carcinoma in situ (DCIS) in breast core needle biopsy (CNB) in order to determine the appropriate candidates for axillary staging. The objective of this study is to identify the predictors of invasion in histology. METHODS AND RESULTS: Consecutive 92 CNB's were retrospectively evaluated. The upstaging rate was 47.8% after surgery. Among all the evaluated parameters, high nuclear grade, single architectural pattern, marked periductal lymphocytic infiltration, partial myoepithelial loss and the presence of foci suspicious of microinvasion were the significant predictors of invasion (two tailed p values 0...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285967/prognostic-factors-in-mnu-and-dmba-induced-mammary-tumors-in-female-rats
#3
Antonieta Alvarado, Ana C Lopes, Ana I Faustino-Rocha, António M S Cabrita, Rita Ferreira, Paula A Oliveira, Bruno Colaço
Chemically-induced mammary tumors in rats by the carcinogens 1-methyl-1-nitrosourea- (MNU) and 7,12-dimethylbenz[a]anthracene (DMBA) are the most widely used models for studies related with human breast cancer. This study aimed to evaluate the immunoexpression of the prognostic factors estrogen receptor α (ERα), progesterone receptor (PR) and Ki-67, in MNU and DMBA-induced rat mammary tumors, in order to know the model that best suits to woman breast cancer. Twenty-eight MNU-induced and 16 DMBA-induced mammary tumors in virgin female Sprague-Dawley rats were analyzed...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285965/prevalence-of-adeno-associated-virus-and-human-papillomavirus-dna-in-iranian-women-with-and-without-cervical-cancer
#4
Nazanin Zahra Shafiei-Jandaghi, Jila Yavarian, Ebrahim Faghihloo, Nastaran Ghavami, Zohreh Yousefi Ghalejoogh, Seyed Jalal Kiani, Somayeh Shatizadeh Malekshahi, Reza Shahsiah, Eisa Jahanzad, Mostafa Hosseini, Talat Mokhtari Azad
There is plenty of substantial evidence to support anti-tumor activity of viruses. Adeno-associated virus (AAV) may interact with human papillomavirus (HPV) to modify the risk of cervical neoplasia. The seroprevalence of AAV among women with cervical cancer has been reported to be lower than healthy ones. In spite of this finding, detection of AAV DNA in cervical biopsies does not entirely support the inverse association between AAV seropositivity and cervical cancer. This association is still controversial and requires more thorough evaluation in different countries...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285964/survivin-and-gynaecological-tumours
#5
REVIEW
Dušan Braný, Dana Dvorská, Pavol Slávik, Richard Školka, Marián Adamkov
Survivin is the smallest member of the inhibitors of apoptosis (IAP) family. However, participation in inhibition of apoptosis is not the only function of this molecule. Survivin can also affect the proper process of mitosis and even promoting of angiogenesis or DNA repair. High levels of survivin expression are connected with foetal tissues during intrauterine development. In the overwhelming majority of healthy, differentiated adult tissues, amounts of survivin are markedly reduced. On the other hand, survivin is also often abundantly expressed in cases of various types of cancer...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285963/clear-cell-colorectal-carcinoma-time-to-clarify-diagnosis
#6
Andrea Remo, Federica Grillo, Luca Mastracci, Matteo Fassan, Sokol Sina, Caterina Zanella, Pietro Parcesepe, Emanuele Damiano Urso, Massimo Pancione, Germana Bortuzzo, Aldo Scarpa, Erminia Manfrin
Primary clear cell colorectal carcinoma (CCC) is a very rare entity accounting for only 35 cases reported in the Literature. CCC is neither classified as a distinct entity nor is it defined as a CRC variant because its ontogeny remains unclear. Most of the reported CCC were found in the distal colon in patients with a mean age of 56 years. Histologically, clear cell change is the main morphologic feature and may present in a "pure" form, composed exclusively of clear cells, or in a "composite" form, admixed with other morphologically different components...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285962/the-erk-mapk-pathway-is-overexpressed-and-activated-in-gallbladder-cancer
#7
Kurt Buchegger, Ramón Silva, Jaime López, Carmen Ili, Juan Carlos Araya, Pamela Leal, Priscilla Brebi, Ismael Riquelme, Juan Carlos Roa
Gallbladder cancer (GBC) is a highly fatal disease with poor prognosis and few therapeutic alternatives. Molecular profiling has revealed that the deregulation in the ERK/MAPK signaling pathway plays a crucial role in many disease and malignancies, including GBC. The aim of this study was to measure the expression of ERK1/2 and p-ERK1/2 in a population with high GBC-related mortality, such as the Chilean population, and characterize the protein expression of this ERK/MAPK pathway in seven GBC cell lines. Immunohistochemistry (IHC) for ERK1/2 and p-ERK1/2 was performed in 123 GBC tissues and 37 chronic cholecystitis (CC) tissues...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285966/hypoxia-reduces-the-e-cadherin-expression-and-increases-oscc-cell-migration-regardless-of-the-e-cadherin-methylation-profile
#8
Patrícia Luciana Batista Domingos, Marcela Gonçalves Souza, Talita Antunes Guimarães, Eliane Sobrinho Santos, Lucyana Conceição Farias, Carlos Alberto de Carvalho Fraga, Kimberly Marie Jones, Sérgio Henrique Souza Santos, Alfredo Maurício Batista de Paula, André Luiz Sena Guimarães
OBJECTIVE: The purpose of the current study is to investigate the association between E-cadherin methylation status, hypoxia and OSCC. METHODS: HaCat and SCC9 cell lines were submitted to hypoxic treatment, followed by methylation profile analysis (MS-PCR) and analysis of the expression of mRNA gene E-cadherin (RT-PCR). Study group samples comprise individuals affected by potentially malignant lesions Potential Malignant Oral Lesion (PMOL, n=18) and oral squamous cell carcinoma (OSCC, n=28)...
February 20, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28325642/an-italian-case-of-intestinal-anisakiasis-with-a-presurgical-diagnosis-could-this-parasite-represent-an-emerging-disease
#9
Magda Zanelli, Moira Ragazzi, Sirio Fiorino, Moira Foroni, Paolo Cecinato, Maria Del Mar Jordana Sanchez, Stefano Ascani, Loredana De Marco
Anisakiasis is a parasitic infection caused by the consumption of raw fish containing larvae of the Anisakis species. Since the first description in 1960 of a patient suffering from this pathogen, in the Netherlands, most of the cases have been reported in Japan, where consumption of raw fish is common, but the number of cases is increasing worldwide. The first case identified in Italy dates back to 1996 and a few cases have been reported since then. In Italy the intestinal form occurs almost as frequently as the gastric form, which is far more frequent in Japan...
February 16, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28242042/eukaryotic-translation-initiation-factor-4e-eif-4e-expressions-are-associated-with-poor-prognosis-in-colorectal-adenocarcinoma
#10
Yi-Ting Chen, Hung-Pei Tsai, Chun-Chieh Wu, Jaw-Yuan Wang, Chee-Yin Chai
Both phosphorylated 4E binding protein 1 (p-4E-BP1) and eukaryotic translation initiation factor 4E (eIF-4E) play an important role in cancer progression. The aim of this study is to evaluate the expression of p-4E-BP1 and eIF-4E in human colorectal cancer (CRC) and to assess their clinical significance. Expression levels of two markers were analyzed in surgical specimens from 116 CRC cases by immunohistochemical staining. Their clinical significance as well as the two proteins' correlation was also investigated...
February 14, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28249774/primary-extraskeletal-myxoid-chondrosarcoma-of-bone-report-of-three-cases-and-review-of-the-literature
#11
L Finos, A Righi, T Frisoni, M Gambarotti, C Ghinelli, S Benini, D Vanel, P Picci
Extraskeletal myxoid chondrosarcoma is a rare neoplasm of soft tissue. The usual location is in deep parts of the proximal extremities and limb girdles in middle-aged adults. The bone location as primary location is extremely rare and few cases are reported. We present three cases arising in bone with molecular confirmation using both RT-PCR and FISH analysis. Patients include two men and one woman with an age of 62, 69 and 73 years old. The mean size of the lesion was 13cm (range 8-18cm). Tumors arose in the iliac bone in two cases and in the proximal humerus in the other case...
February 11, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28242043/mir-26a-performs-converse-roles-in-proliferation-and-metastasis-of-different-gastric-cancer-cells-via-regulating-of-pten-expression
#12
Keshuo Ding, Zhengsheng Wu, Nana Wang, Xiaonan Wang, Yuejun Wang, Pengxu Qian, Gang Meng, Sheng Tan
Gastric cancer is the second leading cause of cancer-related death in the world. The exact molecular pathways in gastric cancer need for further study. We herein indicated miR-26a performed converse roles on oncogenicity in different gastric cancer cells. In gastric cancer cells MKN-28, miR-26a promoted cell proliferation, migration and invasion. However, in gastric cancer cells AGS, miR-26a reduced cell proliferation and metastasis. PTEN was identified as a direct target of miR-26a. In MKN-28 cells, PTEN was suppressed by miR-26a through 3'-UTR, and PTEN mediated miR-26a promoting oncogenicity including cell proliferation and metastasis...
February 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28238541/igg4-related-sclerosing-cholangitis-overlapping-with-autoimmune-hepatitis-report-of-a-case
#13
Hongyan Li, Li Sun, David R Brigstock, Lina Qi, Runping Gao
BACKGROUND: IgG4-related sclerosing cholangitis (IgG4-SC) is the biliary manifestation of IgG4-related disease (IgG4-RD) but the presence of IgG4-SC in the porta hepatis is difficult to differentiate from hilar cholangiocarcinoma (HCCA). IgG4-related autoimmune hepatitis (IgG4-related AIH) is extremely rare and it is not fully clear whether IgG4-related AIH is a hepatic manifestation of IgG4-RD or a subtype of AIH. CASE PRESENTATION: We present a rare case of a 52-year-old male who was admitted with obstructive jaundice and itchy skin...
February 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28237042/expression-of-ngf-gdnf-and-mmp-9-in-prostate-carcinoma
#14
Sirin Baspinar, Sema Bircan, Metin Ciris, Nermin Karahan, Kemal Kursat Bozkurt
The aim of the present study was to investigate the immunohistochemical expression of NGF, GDNF and MMP-9 in benign prostatic hyperplasia (BPH), high grade prostatic intraepithelial neoplasia (HGPIN) and prostate cancer (PC), and to analyse their association with the clinicopathological parameters in PC cases. Immunohistochemistry was performed on the tissue microarray (TMA) sections of 30 BPH, 40 HGPIN and 121 primary PC tissues. There was a significant difference regarding the expression of NGF and GDNF between PC and HGPIN (p<0...
February 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285961/immunocytochemical-expression-of-a-panel-of-markers-in-pleural-effusions-from-patients-with-primary-lung-adenocarcinoma
#15
Eleftheria Chaini, Anna-Maria Athanassiadou, Antonis Vassias, Angelos Tsipis, Maria Gonidi, Kyriakos D Hainis, Andrianni Charpidou, Pauline Athanassiadou
INTRODUCTION: This study's principal objective was to evaluate the critical role of the application of immunocytochemistry to a novel panel of diagnostic markers for the accurate detection of the source of malignancies in pleural effusions of lung adenocarcinoma. MATERIALS AND METHODS: In 40 effusion smears from lung adenocarcinoma, the expression of the E-cadherin, a-catenin, Thyroid Transcription Factor (TTF-1), Epidermal Growth Factor Receptor (EGFR), p53, caspase 9 and 3, Bax and Bcl-2 was examined by immunocytochemistry...
February 7, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214205/synchronous-carcinosarcoma-of-the-uterine-cervix-with-adenoid-basal-carcinoma-and-cervical-intraepithelial-neoplasia-iii-a-case-report-and-literature-review
#16
Yuan Lin, Hanrui Chen, Ziyin Ye, Li Ding, Qinghua Cao, Ling Xue
Carcinosarcoma and adenoid basal carcinoma (ABC) are both rare lesions in uterine cervix. There were only 5 cases of cervical carcinosarcoma combined with ABC and/without cervical intraepithelial neoplasia (CIN) reported in English literature. These limited studies showed that there was a strong association between HPV, carcinosarcoma, ABC and CIN, suggesting a common etiology for these lesions. Here, we present the case of a 65-year-old woman with cervical carcinosarcoma combined with ABC and CIN III. However, HPV-16, 18, 31 and 33 was negative in the cervical carcinosarcoma tissue by in situ hybridization detection...
February 7, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28238383/placental-findings-in-feto-maternal-hemorrhage-in-livebirth-and-stillbirth
#17
Sanjita Ravishankar, Alison Migliori, Judy Struminsky, Phinnara Has, C James Sung, Mai He
Feto-maternal hemorrhage (FMH) is not an uncommon event during pregnancy with important clinical implications for both maternal and fetal outcomes. The diagnosis is often made using Kleihauer-Betke (KB) test. As FMH occurs transplacentally, examination of the placenta may contribute to the diagnosis of FMH. This retrospective case-control study aims to examine the placental features associated FMH in patients with known positive KB test results. When compared with KB negative placentas (n=88), KB positive placentas (n=49) had significantly higher incidence of pallor (6/49 vs 0/88, p=0...
February 6, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28238382/frequency-of-papillary-tubal-hyperplasia-pth-salpingoliths-and-transition-from-adenoma-to-borderline-ovarian-tumors-bot-a-systematic-analysis-of-74-bot-with-different-histologic-types
#18
Lars-Christian Horn, Karolin Angermann, Bettina Hentschel, Jens Einenkel, Anne Kathrin Höhn
Borderline ovarian tumors (BOT) arise from cystadenomas and represent a transition step within the development of low-grade ovarian carcinomas (Type I tumors). That pathway mirrors the adenoma-to-carcinoma sequence known for colorectal cancer. It has been suggested that papillary tubal hyperplasia (PTH) and salpingoliths may be associated with the development of BOT. To evaluate the frequency of the presence of benign cystadenoma and its transition to BOT in a given patient as well as the presence of PTH and salpingoliths we re-valuated in 74 consecutive cases of BOT with different histologic types...
February 6, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214207/microrna-155-targets-map3k10-and-regulates-osteosarcoma-cell-growth
#19
Chuangjian Wang, Xiaobo Zhang, Chunlin Zhang, Fuying Zhai, Ying Li, Zongqiang Huang
Osteosarcoma is the most common type of bone cancer prevalent in young adults. Recent studies suggested that aberrant microRNA expression plays an essential role in osteosarcoma pathogenesis. In this study, we found miR-155 up-regulation in different osteosarcoma cell lines U2OS, Saos-2 and MG-63. Through bioinformatic prediction and analysis, we identified its target MAP3K10 that involved in cell proliferation and apoptosis. This work demonstrates novel interaction between microRNA, intercellular MAPK signaling and apoptosis in osteosarcoma, which will provide targets for therapeutic development...
February 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28222936/36-cases-adenoid-cystic-carcinoma-of-the-breast-in-china-comparison-with-matched-grade-one-invasive-ductal-carcinoma-not-otherwise-specified
#20
Shuling Wang, Weidong Li, Fang Wang, Yun Niu, Chunfang Hao, Xu Wang, Lihong He, Zhongsheng Tong
OBJECTIVE: The aim of this study was to investigate the clinicopathological characteristic of adenoid cystic carcinoma (ACC). MATERIALS AND METHODS: The clininopathological features, along with relapse free survival(RFS) and overall survival(OS) of 36 patients with ACC were retrospectively investigated and compared with those of 108 grade 1 invasive ductal carcinoma not-otherwise-specified (G1-IDC-NOS) patients. RESULTS: Most cases of ACC were ER, PR and HER-2 negative which was classified as triple-negative subtype...
January 31, 2017: Pathology, Research and Practice
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