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https://www.readbyqxmd.com/read/29783017/the-hydro-ethanolic-extract-of-acacia-seyal-mimosaceae-stem-barks-induced-death-in-an-er-negative-breast-cancer-cell-line-by-the-intrinsic-pathway-of-apoptosis-and-inhibited-cell-migration
#1
Stephane Zingue, Thomas Michel, Julia Cisilotto, Alain Brice Tueche, Derek Tantoh Ndinteh, Leônidas João Mello, Dieudonné Njamen, Tânia Beatriz Creczynski-Pasa
BACKGROUND: Despite the significant developments occurring in the treatment of cancer, it still remains the second deadly disease, responsible for 8.2 million deaths every year. Various natural substances have been studied for active molecules of tumor suppression in the past and the tropical flora, by its diversity, continues to provide new antitumor drugs. Acacia seyal is a plant used in Cameroonian traditional system to treat cancer. It exhibited cytotoxic effects towards human breast adenocarcinoma cells...
May 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29783001/laparoscopic-extraperitoneal-pelvic-lymph-node-debulking-in-locally-advanced-cervical-cancer
#2
Diaz-Feijoo Berta, Luna-Guibourg Rocio, Cabrera Silvia, Manrique Susana, Gil-Moreno Antonio
OBJECTIVE: To demonstrate the feasibility of laparoscopic extraperitoneal approach for pelvic metastatic lymph node debulking in locally advanced cervical cancer. DESIGN: Surgical video article. Canadian task force Classification III. SETTING: University Hospital PATIENT: A 52 year-old patient presented a stage IIA2 Cervical adenocarcinoma according to FIGO classification. The physical exam reported a 45 mm tumor. Positron emission tomography (PET- CT) was positive for hypermetabolic enlarged lymph nodes in left external iliac region of 1...
May 18, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29782828/long-noncoding-rna-sox2ot-contributes-to-gastric-cancer-progression-by-sponging-mir-194-5p-from-akt2
#3
Fei Qu, Peilong Cao
Gastric cancer (GC) is a highly malignant cancer with poor prognosis. Long non-coding RNA (LncRNA) may play an important role in tumor progression. Our present study aimed to explore the effect of LncRNA SOX2OT on GC progression. We observed that SOX2OT was overexpressed in GC tissues and cell lines. Overexpressed SOX2OT promoted cell proliferation and metastasis of GC cells (SGC-7901, TMK-1) and the phosphorylation of AKT2 as well, while knockdown of SOX2OT reversed these effects. Besides that, miR-194-5p was predicted to be a target of SOX2OT and decreased expression of miR-194-5p was observed in GC tissues and cell lines...
May 18, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29782499/tgf%C3%AE-signaling-limits-lineage-plasticity-in-prostate-cancer
#4
Yi Hao, Glen A Bjerke, Karolina Pietrzak, Tiffany A Melhuish, Yu Han, Stephen D Turner, Henry F Frierson, David Wotton
Although treatment options for localized prostate cancer (CaP) are initially effective, the five-year survival for metastatic CaP is below 30%. Mutation or deletion of the PTEN tumor suppressor is a frequent event in metastatic CaP, and inactivation of the transforming growth factor (TGF) ß signaling pathway is associated with more advanced disease. We previously demonstrated that mouse models of CaP based on inactivation of Pten and the TGFß type II receptor (Tgfbr2) rapidly become invasive and metastatic...
May 21, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29782011/a-preclinical-mouse-model-of-osteosarcoma-to-define-the-extracellular-vesicle-mediated-communication-between-tumor-and-mesenchymal-stem-cells
#5
Tonny Lagerweij, Maria Pérez-Lanzón, S Rubina Baglio
Within the tumor microenvironment, resident or recruited mesenchymal stem cells (MSCs) contribute to malignant progression in multiple cancer types. Under the influence of specific environmental signals, these adult stem cells can release paracrine mediators leading to accelerated tumor growth and metastasis. Defining the crosstalk between tumor and MSCs is of primary importance to understand the mechanisms underlying cancer progression and identify novel targets for therapeutic intervention. Cancer cells produce high amounts of extracellular vesicles (EVs), which can profoundly affect the behavior of target cells in the tumor microenvironment or at distant sites...
May 6, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781819/staging-of-bone-and-soft-tissue-sarcomas
#6
Robert J Steffner, Eugene S Jang
The purpose of staging in orthopaedic oncology is to provide a framework for classifying tumors based on their risk of local recurrence and distant metastasis to guide treatment decisions. Two separate systems are commonly used to categorize bone and soft-tissue sarcomas. The Musculoskeletal Tumor Society system for bone sarcomas and the Enneking system for soft-tissue sarcomas are the original staging systems developed by orthopaedic surgeons. The American Joint Committee on Cancer staging systems for bone and soft-tissue sarcomas are periodically updated based on new data, and they are currently on their eighth edition...
May 17, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29781749/oncogenic-pkc-%C3%AE-activates-vimentin-during-epithelial-mesenchymal-transition-in-melanoma-a-study-based-on-pkc-%C3%AE-and-pkc-%C3%AE-specific-inhibitors
#7
Wishrawana S Ratnayake, Christopher A Apostolatos, André H Apostolatos, Ryan J Schutte, Monica A Huynh, David A Ostrov, Mildred Acevedo-Duncan
Melanoma is one of the fastest growing cancers in the United States and is accompanied with a poor prognosis owing to tumors being resistant to most therapies. Atypical protein kinase Cs (aPKC) are involved in malignancy in many cancers. We previously reported that aPKCs play a key role in melanoma's cell motility by regulating cell signaling pathways which induce epithelial-mesenchymal Transition (EMT). We tested three novel inhibitors; [4-(5-amino-4-carbamoylimidazol-1-yl)-2,3-dihydroxycyclopentyl] methyl dihydrogen phosphate (ICA-1T) along with its nucleoside analog 5-amino-1-((1R,2S,3S,4R)-2,3-dihydroxy-4-methylcyclopentyl)-1H-imidazole-4-carboxamide (ICA-1S) which are specific to protein kinase C-iota (PKC-ι) and 8-hydroxy-1,3,6-naphthalenetrisulfonic acid (ζ-Stat) which is specific to PKC-zeta (PKC-ζ) on cell proliferation, apoptosis, migration and invasion of two malignant melanoma cell lines compared to normal melanocytes...
May 21, 2018: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/29781545/preventive-measures-against-stricture-after-esophageal-esd-halfway-through-the-journey-to-the-best-method
#8
EDITORIAL
Yosuke Tsuji, Yoshiki Sakaguchi, Mitsuhiro Fujishiro, Kazuhiko Koike
Endoscopic submucosal dissection (ESD) for esophageal neoplasms with negligible risk of nodal metastasis has become standard treatment. A large tumor or a lesion with submucosal fibrosis can be resected with ESD in an en block manner. Moreover, ESD allows accurate histopathological diagnosis and reduces the risk of local recurrence. This article is protected by copyright. All rights reserved.
May 21, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29781503/cancer-stem-cells-a-new-target-for-cancer-therapy
#9
REVIEW
Qianhui Li, Jiayu Wu, Shuo Chen, Yang Zhao
The introduction of the theory of cancer stem cells (CSCs) has provided a new direction and perspective for our understanding of the nature and origin of tumors. Cancer stem cells are believed to be responsible for the treatment failure, drug tolerance, metastasis, and recurrence of tumors. However, it remains a challenge to identify or isolate tumor stem cells and determine their regulatory mechanisms. Therefore, further understanding of the biological characteristics and functions of CSCs is of great practical significance and value to develop new methods of tumor diagnosis and treatment, and may bring new hope patients with cancer...
May 21, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29781368/the-role-of-the-oncogenic-rab35-in-cancer-invasion-metastasis-and-immune-evasion-especially-in-leukemia
#10
Fabian R Villagomez, Oscar Medina-Contreras, Jorge Francisco Cerna-Cortes, Genaro Patino-Lopez
The study of cancer has allowed researchers to describe some biological characteristics that tumor cells acquire during their development, known as the "hallmarks of cancer" but more research is needed to expand our knowledge about cancer biology and to generate new strategies of treatment. The role that RabGTPases might play in some hallmarks of cancer represents interesting areas of study since these proteins are frequently altered in cancer. However, their participation is not well known. Recently, Rab35was recognized as an oncogenic RabGTPase and and because of its association with different cellular functions, distinctly important in immune cells, a possible role of Rab35 in leukemia can be suggested...
May 21, 2018: Small GTPases
https://www.readbyqxmd.com/read/29781071/wound-fluids-collected-from-patients-after-iort-treatment-activates-extrinsic-apoptotic-pathway-in-mcf7-breast-cancer-cell-line
#11
Katarzyna Ida Kulcenty, Igor Piotrowski, Karolina Zaleska, Dawid Murawa, Wiktoria Maria Suchorska
OBJECTIVES: Intraoperative radiotherapy (IORT) relates to irradiation of diseased tissue during the surgery within the tumor bed. The reason for this process is based on the fact that the increase in the radiation dose increases local tumor control. It was shown that postoperative fluids obtained from patients after breast cancer conserving surgery, stimulated motility and invasiveness of tumor cells in vitro. The results obtained from TARGIT clinical trial demonstrated that IORT significantly inhibits the stimulatory effect of wound fluids on tumor cells in vitro...
2018: Ginekologia Polska
https://www.readbyqxmd.com/read/29781033/microarray-analysis-of-circular-rna-expression-profiles-associated-with-gemcitabine-resistance-in-pancreatic-cancer-cells
#12
Chao Xu, Yue Yu, Fei Ding
Pancreatic cancer (PC) is one of the most malignant tumors of the digestive system due to its rapid progression, metastasis and resistance to chemotherapy. Gemcitabine (GEM) chemotherapy is the first‑choice treatment for advanced PC. However, the effect of GEM‑based chemotherapy on PC is limited due to the development of chemoresistance, and the molecular mechanisms underlying this resistance have yet to be investigated. Circular RNAs (circRNAs), which can function as microRNA sponges, have been found to be involved in the development of several types of cancer...
May 17, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29780885/a-simple-bioluminescence-imaging-method-for-studying-cancer-cell-growth-and-metastasis-after-subcutaneous-injection-of-lewis-lung-carcinoma-cells-in-syngeneic-c57bl-6-mice
#13
Hong Zhu, Megan E Kauffman, Michael A Trush, Zhenquan Jia, Y Robert Li
In vivo imaging of cancer cell growth and invasion is instrumental in studying cancer cell behavior and in developing effective anticancer agents. In this ROS Protocols article, we report the experimental protocol and steps involving the implantation of luciferase-expressing Lewis lung carcinoma (LLC) cells in normal syngeneic C57BL/6 mice. Using the Berthold NightOwl LB981 in vivo imaging system, we observe the time-dependent growth and invasion of the lung cancer cells following subcutaneous injection of luciferase-expressing LLC cells...
March 2018: Reactive Oxygen Species (Apex, N.C.)
https://www.readbyqxmd.com/read/29780773/clinical-characteristics-and-outcomes-of-placental-site-trophoblastic-tumor-experience-of-single-institution-in-korea
#14
Hye-Joo Lee, Wonkyo Shin, Yun Jeong Jang, Chel Hun Choi, Jeong-Won Lee, Duk-Soo Bae, Byoung-Gie Kim
Objective: Placental site trophoblastic tumor (PSTT) is the rarest form of gestational trophoblastic disease (GTD) and the optimum management is still controversial. In this study, we analyzed the clinical features, treatment, and outcomes of 6 consecutive patients with PSTT treated in our institution. Methods: The electronic medical record database of Samsung Medical Center was screened to identify patients with PSTT from 1994 to 2017. Medical records for the details of each patient's clinical features and treatment were extracted and reviewed...
May 2018: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29780748/cell-adhesion-and-matrix-stiffness-coordinating-cancer-cell-invasion-and-metastasis
#15
REVIEW
Vasiliki Gkretsi, Triantafyllos Stylianopoulos
Metastasis is a multistep process in which tumor extracellular matrix (ECM) and cancer cell cytoskeleton interactions are pivotal. ECM is connected, through integrins, to the cell's adhesome at cell-ECM adhesion sites and through them to the actin cytoskeleton and various downstream signaling pathways that enable the cell to respond to external stimuli in a coordinated manner. Cues from cell-adhesion proteins are fundamental for defining the invasive potential of cancer cells, and many of these proteins have been proposed as potent targets for inhibiting cancer cell invasion and thus, metastasis...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29780735/the-expression-and-functional-significance-of-vascular-endothelial-cadherin-cd44-and-vimentin-in-oral-squamous-cell-carcinoma
#16
Soussan Irani, Arash Dehghan
Objectives: Ninety percent of head and neck cancers are squamous cell carcinoma which develops in the oral cavity. Metastasis is the main causative factor for death in 90% of all cancer-related deaths and begins with the invasion of tumor cells through the walls of small blood vessels or lymph vessels. A growing body of evidence has shown that vasculogenic mimicry (VM) facilitates tumor growth and cancer metastasis. The current study aimed to present the role of vascular endothelial (VE)-cadherin, CD44, and vimentin in inducing VM and epithelial-mesenchymal transition (EMT) and to identify the cancer stem cell (CSC) niche in different grades of oral squamous cell carcinoma (OSCC)...
March 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29780392/tumor-derived-apoptotic-vesicles-with-death-they-do-part
#17
REVIEW
Morad-Remy Muhsin-Sharafaldine, Alexander D McLellan
Tumor cells release lipid particles known as extracellular vesicles (EV) that contribute to cancer metastasis, to the immune response, and to thrombosis. When tumors are exposed to radiation or chemotherapy, apoptotic vesicles (ApoVs) are released in abundance as the plasma membrane delaminates from the cytoskeleton. Recent studies have suggested that ApoVs are distinct from the EVs released from living cells, such as exosomes or microvesicles. Depending on their treatment conditions, tumor-released ApoV have been suggested to either enhance or suppress anti-cancer immunity...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29780254/are-ovarian-cancer-stem-cells-the-target-for-innovative-immunotherapy
#18
REVIEW
Liang Wang, Tianmin Xu, Manhua Cui
Cancer stem cells (CSCs), a subpopulation of cancer cells with the ability of self-renewal and differentiation, are believed to be responsible for tumor generation, progression, metastasis, and relapse. Ovarian cancer, the most malignant gynecological cancer, has consistent pathology behavior with CSC model, which suggests that therapies based on ovarian cancer stem cells (OCSCs) can gain a more successful prognosis. Much evidence has proved that epigenetic mechanism played an important role in tumor formation and sustainment...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29780251/wwc3-inhibits-epithelial-mesenchymal-transition-of-lung-cancer-by-activating-hippo-yap-signaling
#19
Qiang Han, Joachim Kremerskothen, Xuyong Lin, Xiupeng Zhang, Xuezhu Rong, Di Zhang, Enhua Wang
Background: Though we recently reported that the WWC3 inhibits the invasiveness and metastasis of lung cancer by activating the Hippo pathway, the impact and underlying mechanisms of this process still remain unclear. Methods: To identify the role of WWC3 in epithelial-mesenchymal transition of lung cancer, we performed immunohistochemistry to detect the expression levels of WWC3 and EMT-related biomarker, and analyzed their correlations in a cohort of 127 patients with NSCLC...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29780166/nudt21-negatively-regulates-psmb2-and-cxxc5-by-alternative-polyadenylation-and-contributes-to-hepatocellular-carcinoma-suppression
#20
Sheng Tan, Hua Li, Weijie Zhang, Yunying Shao, Yuan Liu, Haiyang Guan, Jun Wu, Yani Kang, Junsong Zhao, Qing Yu, Yunzhao Gu, Keshuo Ding, Min Zhang, Wenchang Qian, Yong Zhu, Huayong Cai, Changyu Chen, Peter E Lobie, Xiaodong Zhao, Jielin Sun, Tao Zhu
Alternative polyadenylation (APA) is an important post-transcriptional regulatory mechanism and involved in many diseases, including cancer. CFIm25, a subunit of the cleavage factor I encoded by NUDT21, is required for 3'RNA cleavage and polyadenylation. Although it has been recently reported to be involved in glioblastoma tumor suppression, its roles and the underlying functional mechanism remain unclear in other types of cancer. In this study, we characterized NUDT21 in hepatocellular carcinoma (HCC). Reduced expression of NUDT21 was observed in HCC tissue compared to adjacent non-tumorous compartment...
May 21, 2018: Oncogene
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