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https://www.readbyqxmd.com/read/28532141/pleomorphic-sarcoma-of-breast-a-report-of-two-cases-and-review-of-literature
#1
Anju Bansal, Manveen Kaur, Varsha Dalal
Sarcomas account for less than 1% of all primary breast malignancies, pleomorphic sarcoma of the breast being even rarer. We present two cases of pleomorphic sarcoma of the breast in a 35-year-old and a 43-year-old female. An extensive review of the available literature with evaluation of the etiology, changing terminologies and histopathologic features of pleomorphic sarcoma of the breast are discussed. The prognostic factors and treatment modalities have also been reviewed.
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28531886/malignancy-in-solitary-thyroid-nodules-evaluation-of-risk-factors
#2
Osman Uyar, Bahadır Cetin, Bulent Aksel, Lutfi Dogan, Kemal Beksac, Gokhan G Akgul, Ugur Berberoglu, Mehmet A Gulcelik
No abstract text is available yet for this article.
May 19, 2017: Oncology Research and Treatment
https://www.readbyqxmd.com/read/28531881/first-in-man-dose-escalation-and-pharmacokinetic-study-of-cap7-1-a-novel-prodrug-of-etoposide-in-adults-with-refractory-solid-tumours
#3
U Keilholz, L Rohde, P Mehlitz, M Knoedler, A Schmittel, V Kümmerlen, K Klinghammer, P Treasure, M Lassus, G Steventon, M Machacek, N Utku
AIM: An open-label, phase I dose-escalation trial was performed in adult patients with various solid cancers to identify the maximum tolerated dose (MTD), to assess the safety, pharmacokinetic profile and anti-tumour activity of the new prodrug CAP7.1. The prodrug is converted to its active moiety etoposide via carboxylesterases in selective cells leading to a better tolerability and higher efficacy in therapeutic resistance cells and children with refractory neuroblastoma. PATIENTS AND METHODS: Eligible adult patients with advanced, refractory, solid malignancies received CAP7...
May 19, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28531871/echinococcosis-mimicking-liver-malignancy-a-case-report
#4
Radek Pohnan, Miroslav Ryska, Vladislav Hytych, Radek Matej, Petr Hrabal, Jiri Pudil
INTRODUCTION: Human Alveolar Echinococcosis - Alveolar Hydatid disease (AE) is an omitted zoonotic infection presenting with focal liver lesions. Cause of AE is a larval stage of Echinococcus multilocularis tapeworms. CASE PRESENTATION: In this report an extraordinary case of a 38 year-old female examined due to 2 liver tumors and 2 pulmonary nodules is described. The patient underwent pulmonary and liver surgery for suspected advanced cholangiocellular carcinoma and surprisingly AE was found...
May 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28531552/the-role-of-next-generation-sequencing-in-infection-prevention-in-human-parainfluenza-virus-3-infections-in-immunocompromised-patients
#5
Atul Kothari, Mary J Burgess, Juan Carlos Rico Crescencio, Joshua L Kennedy, Jesse L Denson, Kurt C Schwalm, Ashley N Stoner, John C Kincaid, Faith E Davies, Darrell L Dinwiddie
BACKGROUND: Respiratory viral infections are a significant problem in patients with hematologic malignancies. We report a cluster of HPIV 3 infections in our myeloma patients, and describe the utility of next generation sequencing (NGS) to identify transmission linkages which can assist in infection prevention. OBJECTIVES: To evaluate the utility of NGS to track respiratory viral infection outbreaks and delineate between community acquired and nosocomial infections in our cancer units...
May 12, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531342/prognostic-significance-of-preoperative-neutrophilia-on-recurrence-free-survival-in-meningioma
#6
Shirin Karimi, Mana V Vyas, Lior Gonen, Raha Tabasinejad, Quinn Ostrom, Jill Barnholtz-Sloan, Suganth Suppiah, Gelareh Zadeh, Kenneth Aldape
Background: Meningioma is the most common primary intracranial tumor and recurrence is one of the important challenges in patient management. Prognostic factors for tumor recurrences in these patients especially before surgical resection are not fully characterized. Several studies have indicated an association between changes in hematologic laboratory parameters with patient outcomes in solid malignancies. We aimed to assess the association between hematological parameters and tumor recurrence in patients with meningioma...
May 20, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28531213/perfusion-mr-imaging-detection-of-carcinoma-arising-from-preexisting-salivary-gland-pleomorphic-adenoma-by-computer-assisted-analysis-of-time-signal-intensity-maps
#7
Ikuo Katayama, Sato Eida, Shuichi Fujita, Yuka Hotokezaka, Misa Sumi, Takashi Nakamura
Tumor perfusion can be evaluated by analyzing the time-signal intensity curve (TIC) after dynamic contrast-enhanced (DCE) MR imaging. Accordingly, TIC profiles are characteristic of some benign and malignant salivary gland tumors. A carcinoma ex pleomorphic adenoma (CXPA) arises from a long-standing pleomorphic adenoma (PA) and has a distinctive prognostic risk depending on the tumor growth potential such as invasion beyond the preexisting capsule. Differentiating CXPA from PA can be very challenging. In this study, we have attempted to discriminate CXPA from PA based on a two-dimensional TIC mapping algorithm...
2017: PloS One
https://www.readbyqxmd.com/read/28531111/target-therapies-for-uterine-carcinosarcomas-current-evidence-and-future-perspectives
#8
REVIEW
Salvatore Giovanni Vitale, Antonio Simone Laganà, Stella Capriglione, Roberto Angioli, Valentina Lucia La Rosa, Salvatore Lopez, Gaetano Valenti, Fabrizio Sapia, Giuseppe Sarpietro, Salvatore Butticè, Carmelo Tuscano, Daniele Fanale, Alessandro Tropea, Diego Rossetti
Carcinosarcomas (CS) in gynecology are very infrequent and represent only 2-5% of uterine cancers. Despite surgical cytoreduction and subsequent chemotherapy being the primary treatment for uterine CS, the overall five-year survival rate is 30 ± 9% and recurrence is extremely common (50-80%). Due to the poor prognosis of CS, new strategies have been developed in the last few decades, targeting known dysfunctional molecular pathways for immunotherapy. In this paper, we aimed to gather the available evidence on the latest therapies for the treatment of CS...
May 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28531095/synthesis-of-1-2-3-triazolo-4-5-h-quinolone-derivatives-with-novel-anti-microbial-properties-against-metronidazole-resistant-helicobacter-pylori
#9
Mohammad Abu-Sini, Amal Mayyas, Nehaya Al-Karablieh, Rula Darwish, Yusuf Al-Hiari, Talal Aburjai, Shereen Arabiyat, Luay Abu-Qatouseh
Helicobacter pylori infection can lead to gastritis, peptic ulcer, and the development of mucosa associated lymphoid tissue (MALT) lymphoma. Treatment and eradication of H. pylori infection can prevent relapse and accelerate the healing of gastric and duodenal ulcers as well as regression of malignancy. Due to the increasing emergence of antibiotic resistance among clinical isolates of H. pylori, alternative approaches using newly discovered antimicrobial agents in combination with the standard antibiotic regimens for the treatment of H...
May 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28530852/long-term-risk-of-subsequent-malignant-neoplasms-after-treatment-of-childhood-cancer-in-the-dcog-later-study-cohort-role-of-chemotherapy
#10
Jop C Teepen, Flora E van Leeuwen, Wim J Tissing, Eline van Dulmen-den Broeder, Marry M van den Heuvel-Eibrink, Helena J van der Pal, Jacqueline J Loonen, Dorine Bresters, Birgitta Versluys, Sebastian J C M M Neggers, Monique W M Jaspers, Michael Hauptmann, Margriet van der Heiden-van der Loo, Otto Visser, Leontien C M Kremer, Cécile M Ronckers
Purpose Childhood cancer survivors (CCSs) are at increased risk for subsequent malignant neoplasms (SMNs). We evaluated the long-term risk of SMNs in a well-characterized cohort of 5-year CCSs, with a particular focus on individual chemotherapeutic agents and solid cancer risk. Methods The Dutch Childhood Cancer Oncology Group-Long-Term Effects After Childhood Cancer cohort includes 6,165 5-year CCSs diagnosed between 1963 and 2001 in the Netherlands. SMNs were identified by linkages with the Netherlands Cancer Registry, the Dutch Pathology Registry, and medical chart review...
May 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28530791/farnesyltransferase-mediated-delivery-of-a-covalent-inhibitor-overcomes-alternative-prenylation-to-mislocalize-k-ras
#11
Christopher J Novotny, Gregory L Hamilton, Frank McCormick, Kevan Shokat
Mutationally activated Ras is one of the most common oncogenic drivers found across all malignancies, and its selective inhibition has long been a goal in both pharma and academia. One of the oldest and most validated methods to inhibit overactive Ras signaling is by interfering with its post-translational processing and subsequent cellular localization. Previous attempts to target Ras processing led to the development of farnesyltransferase inhibitors, which can inhibit H-Ras localization but not K-Ras due to its ability to bypass farnesyltransterase inhibition though alternative prenylation by geranylgeranyltransferase...
May 22, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28530767/diagnostic-evaluation-of-upper-extremity-masses-and-tumors
#12
Andrew R Tyser, Patrick A Holt, R Lor Randall
The appropriate evaluation of hand and upper extremity masses is an important aspect of the care of orthopedic patients. Although most of these masses are benign, the orthopedic surgeon must have a high index of suspicion when assessing them because early diagnosis and treatment of aggressive or malignant masses may have a great effect on patient outcomes. This article provides an overview of benign and malignant osseous and soft tissue masses that orthopedic surgeons may encounter and a detailed algorithm for evaluating these masses...
May 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/28530743/multicellular-tumor-invasion-and-plasticity-in-biomimetic-materials
#13
Susan E Leggett, Amanda S Khoo, Ian Y Wong
Cancer cell invasion through the extracellular matrix is associated with metastatic spread and therapeutic resistance. In carcinomas, the detachment and dissemination of individual cells has been associated with an epithelial-mesenchymal transition, but tumors can also invade using collective, multicellular phenotypes. This malignant tumor progression is also associated with alignment and stiffening of the surrounding extracellular matrix. Historically, tumor invasion has been investigated using 2D monolayer culture, small animal models or patient histology...
May 22, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28530704/upregulation-of-cyp17a1-by-sp1-mediated-dna-demethylation-confers-temozolomide-resistance-through-dhea-mediated-protection-in-glioma
#14
J-Y Chuang, W-L Lo, C-Y Ko, S-Y Chou, R-M Chen, K-Y Chang, J-J Hung, W-C Su, W-C Chang, T-I Hsu
Steroidogenesis-mediated production of neurosteroids is important for brain homeostasis. Cytochrome P450 17A1 (CYP17A1), which converts pregnenolone to dehydroepiandrosterone (DHEA) in endocrine organs and the brain, is required for prostate cancer progression and acquired chemotherapeutic resistance. However, whether CYP17A1-mediated DHEA synthesis is involved in brain tumor malignancy, especially in glioma, the most prevalent brain tumor, is unknown. To investigate the role of CYP17A1 in glioma, we determined that CYP17A1 expression is significantly increased in gliomas, which secrete more DHEA than normal astrocytes...
May 22, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28530657/normal-and-cancerous-mammary-stem-cells-evade-interferon-induced-constraint-through-the-mir-199a-lcor-axis
#15
Toni Celià-Terrassa, Daniel D Liu, Abrar Choudhury, Xiang Hang, Yong Wei, Jose Zamalloa, Raymundo Alfaro-Aco, Rumela Chakrabarti, Yi-Zhou Jiang, Bong Ihn Koh, Heath A Smith, Christina DeCoste, Jun-Jing Li, Zhi-Ming Shao, Yibin Kang
Tumour-initiating cells, or cancer stem cells (CSCs), possess stem-cell-like properties observed in normal adult tissue stem cells. Normal and cancerous stem cells may therefore share regulatory mechanisms for maintaining self-renewing capacity and resisting differentiation elicited by cell-intrinsic or microenvironmental cues. Here, we show that miR-199a promotes stem cell properties in mammary stem cells and breast CSCs by directly repressing nuclear receptor corepressor LCOR, which primes interferon (IFN) responses...
May 22, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28530649/thymidine-phosphorylase-promotes-metastasis-and-serves-as-a-marker-of-poor-prognosis-in-hepatocellular-carcinoma
#16
Qiang Zhang, Yang Zhang, Xuejiao Hu, Yuan Qin, Weilong Zhong, Jing Meng, Ting Xiao, Chunhong Zhang, Meng Li, Shuang Chen, Huijuan Liu, Yanrong Liu, Tao Sun, Cheng Yang
Hepatocellular carcinoma (HCC) ranks as one of the most common and lethal malignancies worldwide. A better understanding of the mechanism responsible for HCC metastasis will be helpful for the treatment of HCC patients. Thymidine phosphorylase (TP), a key enzyme that catalyzes the conversion of thymidine to thymine and deoxyribose-1-phosphate, was demonstrated to promote the invasion and metastasis of HCC in our study. Clinical retrospective analysis revealed that metastatic HCC tumor tissues have higher TP expression, and TP expression was significantly correlated with matrix metalloproteinase (MMP) 2 and 9 expression...
May 22, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28530640/genetic-regulation-of-the-runx-transcription-factor-family-has-antitumor-effects
#17
Ken Morita, Kensho Suzuki, Shintaro Maeda, Akihiko Matsuo, Yoshihide Mitsuda, Chieko Tokushige, Gengo Kashiwazaki, Junichi Taniguchi, Rina Maeda, Mina Noura, Masahiro Hirata, Tatsuki Kataoka, Ayaka Yano, Yoshimi Yamada, Hiroki Kiyose, Mayu Tokumasu, Hidemasa Matsuo, Sunao Tanaka, Yasushi Okuno, Manabu Muto, Kazuhito Naka, Kosei Ito, Toshio Kitamura, Yasufumi Kaneda, Paul P Liu, Toshikazu Bando, Souichi Adachi, Hiroshi Sugiyama, Yasuhiko Kamikubo
Runt-related transcription factor 1 (RUNX1) is generally considered to function as a tumor suppressor in the development of leukemia, but a growing body of evidence suggests that it has pro-oncogenic properties in acute myeloid leukemia (AML). Here we have demonstrated that the antileukemic effect mediated by RUNX1 depletion is highly dependent on a functional p53-mediated cell death pathway. Increased expression of other RUNX family members, including RUNX2 and RUNX3, compensated for the antitumor effect elicited by RUNX1 silencing, and simultaneous attenuation of all RUNX family members as a cluster led to a much stronger antitumor effect relative to suppression of individual RUNX members...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28530543/using-properties-of-tumor-microenvironments-for-controlling-local-on-demand-delivery-from-biopolymer-based-nanocarriers
#18
Abdullah K Alshememry, Suleiman S El-Tokhy, Larry D Unsworth
BACKGROUND: The 'tumor microenvironment' comprised of tumor cells, non-malignant stromal tissues, signaling molecules and the extracellular matrix. Tumor microenvironment has unique physical and physiological characteristics including vascular abnormalities, hypoxia, acidic pH, specific enzymes and growth factors upregulation and high reducing potential. It is these endogenous properties of the tumor environment that can be used to trigger the release of cancer therapeutics both locally and as a function of disease state...
May 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28530542/a-comparison-of-the-toxicity-of-mono-bis-tris-and-tetrakis-phosphino-silver-complexes-on-sno-esophageal-cancer-cells
#19
Zelinda Engelbrecht, Kariska Potgieter, Zenele Mpela, Rehana Malgas-Enus, Reinout Meijboom, Marianne J Cronje
Several silver(I) triphenylphosphine adducts were prepared as 1:1 to 1:4 ratios of silver nitrate to triphenylphosphine were used to determine their anticancer activity in a malignant SNO esophageal cell line. The silver-phosphine adducts include: [Ag(PPh3)]NO3 (1); [Ag(PPh3)2]NO3 (2); [Ag(PPh3)3]NO3 (3) and [Ag(PPh3)4]NO3 (4). In addition, the activity of 1-4 where compared to previously reported complexes [Ag(Ph2P(CH2)2PPh2)2]NO3 (5) and [Ag(Ph2P(CH2)3PPh2)2]NO3 (6). The cytotoxicity of complexes 1 to 6 was also evaluated in non-malignant human dermal fibroblast cells (HDF-a)...
May 22, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28530531/the-complexity-of-dek-signaling-in-cancer-progression
#20
Yong Teng, Liwei Lang, Catherine E Jauregui
The DNA binding protein and chromatin structural regulator DEK regulates many cellular processes. These include proliferation, differentiation, apoptosis, senescence, DNA repairing and the maintenance of stem cell phenotype. DEK is increasingly recognized as a crucial player in many steps of cancer initiation and progression, and is precisely regulated by abundant promoting and inhibiting factors directly or indirectly. DEK may serve as an architectural modulating protein to regulate the expression and function of multiple human genes in cancer cells...
May 21, 2017: Current Cancer Drug Targets
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