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tumor stroma ratio

Ivan R Ilic, Nikola M Stojanović, Pavle J Randjelović, Marina N Mihajlović, Niko S Radulović, Ratko S Ilić
BACKGROUND: Invasive lobular breast cancer (ILC) is the second most frequent form of breast cancer. While cancer cells are regularly investigated, tumor stroma represents a highly unexplored field. AIMS: The aim of this study is to perform a detailed investigation of clinical, immunohistochemical, and morphometric characteristics of desmoplastic (D) and nondesmoplastic (ND) ILC. MATERIALS AND METHODS: This study included twenty cases of ILC that were divided into two groups designated as D and ND groups...
October 2016: Indian Journal of Pathology & Microbiology
Danh Truong, Julieann Puleo, Alison Llave, Ghassan Mouneimne, Roger D Kamm, Mehdi Nikkhah
In this study, to model 3D chemotactic tumor-stroma invasion in vitro, we developed an innovative microfluidic chip allowing side-by-side positioning of 3D hydrogel-based matrices. We were able to (1) create a dual matrix architecture that extended in a continuous manner, thus allowing invasion from one 3D matrix to another, and (2) establish distinct regions of tumor and stroma cell/ECM compositions, with a clearly demarcated tumor invasion front, thus allowing us to quantitatively analyze progression of cancer cells into the stroma at a tissue or single-cell level...
September 28, 2016: Scientific Reports
A Crombe, N Alberti, E Stoeckle, V Brouste, X Buy, J-M Coindre, M Kind
OBJECTIVES: To retrospectively evaluate the diagnostic performance of morphological signs observed on conventional magnetic resonance (MR) imaging to differentiate benign from malignant peripheral solid tumors of soft tissue with myxoid stroma. METHODS: MR images from 95 consecutive histopathologically proven tumors (26 benign and 69 malignant) of soft tissues with myxoid components were evaluated in our tertiary referral center. Two radiologists, blind to pathology results, independently reviewed conventional MR sequences including at least a) one T2-weighted sequence with or without fat suppression; b) one T1-weighted sequence without fat suppression; and c) one T1-weighted sequence with gadolinium-complex contrast enhancement and fat suppression...
October 2016: European Journal of Radiology
Jiayuan Wu, Caixia Liang, Manyu Chen, Wenmei Su
Tumor-related stroma plays an active role in tumor invasion and metastasis. The tumor-stroma ratio (TSR) in the pathologic specimen has drawn increasing attention from the field of predicting tumor prognosis. However, the prognostic value of TSR in solid tumors necessitates further elucidation. We conducted a meta-analysis on 14 studies with 4238 patients through a comprehensive electronic search on databases updated on May 2016 to explore the relationship between TSR and prognosis of solid tumors. The overall hazard ratio showed that rich stroma in tumor tissue was associated with poor overall survival (OS) (14 studies, 4238 patients) and disease-free survival (DFS) (9 studies, 2235 patients) of patients with solid tumors...
September 20, 2016: Oncotarget
Masaki Goto, Masahito Naito, Koichi Saruwatari, Kakeru Hisakane, Motohiro Kojima, Satoshi Fujii, Takeshi Kuwata, Atsushi Ochiai, Shogo Nomura, Keiju Aokage, Tomoyuki Hishida, Junji Yoshida, Kohei Yokoi, Masahiro Tsuboi, Genichiro Ishii
PURPOSE: Induction therapy induces degenerative changes of various degrees in both cancerous and non-cancerous cells of non-small cell lung cancer (NSCLC). The effect of induction therapy on histological characteristics, in particular the ratio of residual cancer cells to non-cancerous components, is unknown. METHODS: Seventy-four NSCLC patients treated with induction therapy followed by surgery were enrolled. Residual cancer cells were identified using anti-pan-cytokeratin antibody (AE1/AE3)...
September 17, 2016: Journal of Cancer Research and Clinical Oncology
Michelle R Downes, Eli Gibson, Jenna Sykes, Masoom Haider, Theo H van der Kwast, Aaron Ward
RATIONALE AND OBJECTIVES: The study aimed to determine the relationship between T2-weighted magnetic resonance imaging (MRI) signal and histologic sub-patterns in prostate cancer areas with different Gleason grades. MATERIALS AND METHODS: MR images of prostates (n = 25) were obtained prior to radical prostatectomy. These were processed as whole-mount specimens with tumors and the peripheral zone was annotated digitally by two pathologists. Gleason grade 3 was the most prevalent grade and was subdivided into packed, intermediate, and sparse based on gland-to-stroma ratio...
September 14, 2016: Academic Radiology
Dwi L Priwitaningrum, Jean-Baptiste G Blondé, Adithya Sridhar, Joop van Baarlen, Wim E Hennink, Gert Storm, Séverine Le Gac, Jai Prakash
Nanoparticle penetration through tumor tissue after extravasation is considered as a key issue for tumor distribution and therapeutic effects. Most tumors possess abundant stroma, a fibrotic tissue composed of cancer-associated fibroblasts (CAFs) and extracellular matrix (ECM), which acts as a barrier for nanoparticle penetration. There is however a lack of suitable in vitro systems to study the tumor stroma penetration of nanoparticles. In the present study, we developed and thoroughly characterized a 3D co-culture spheroidal array to mimic tumor stroma and investigated the penetration of silica and PLGA nanoparticles in these spheroids...
September 9, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
F J Vogelaar, G W van Pelt, A M van Leeuwen, J M Willems, R A E M Tollenaar, G J Liefers, W E Mesker
PURPOSE: Current TNM staging does not appropriately identify high-risk colorectal cancer (CRC) patients. The aim of this study was to evaluate whether the presence of disseminated tumor cells (DTCs) in the bone marrow (BM) and the presence of stroma in the primary tumor, i.e., the tumor-stroma ratio (TSR), in patients undergoing surgical resection of primary CRC provides information relevant for disease outcome. METHODS: Patients with primary CRC (n = 125), consecutively admitted for curative resection between 2001 and 2007, were included in the study...
September 9, 2016: Cellular Oncology (Dordrecht)
Jianqin Shen, Hongguang Cui, Shi Feng
PURPOSE: Olfactory neuroblastoma (ONB) is a rare neuroectodermal malignant neoplasm that originates from the olfactory sensory epithelium. In reported cases involving the orbit, the primary neoplasms could invade the orbits through bone destruction or cranio-orbital communication anatomical structure. The present study reports a rare case of orbital metastatic tumor arising from an intracranial ONB in a Chinese patient, which is the first case demonstrating an uncommon route of ONB involving the orbit...
2016: OncoTargets and Therapy
Agua Sobrino, Duc T T Phan, Rupsa Datta, Xiaolin Wang, Stephanie J Hachey, Mónica Romero-López, Enrico Gratton, Abraham P Lee, Steven C George, Christopher C W Hughes
There is a growing interest in developing microphysiological systems that can be used to model both normal and pathological human organs in vitro. This "organs-on-chips" approach aims to capture key structural and physiological characteristics of the target tissue. Here we describe in vitro vascularized microtumors (VMTs). This "tumor-on-a-chip" platform incorporates human tumor and stromal cells that grow in a 3D extracellular matrix and that depend for survival on nutrient delivery through living, perfused microvessels...
2016: Scientific Reports
Aparna Harbhajanka, Pincas Bitterman, Vijaya B Reddy, Ji-Weon Park, Paolo Gattuso
Granulosa cell tumors (GCT) of the ovary are low grade tumor with a potential ability of late pelvic recurrences and distant metastases. However, there is sparse literature on the cytopathologic features of metastatic granulosa cell tumors (MGCT). Between 2000 and 2014, eight cases of MGCT were diagnosed by FNA. Clinical, cytologic, and histopathologic features were reviewed. The age ranged from 34 to 84 years. Metastases were found in abdominal wall (4 cases), pelvic mass (1 case), liver (2 cases), and lung (1 case)...
August 5, 2016: Diagnostic Cytopathology
Shuijin Lian, Xiaolu Zhai, Xudong Wang, Huijun Zhu, Shu Zhang, Wei Wang, Zhiwei Wang, Jianfei Huang
Growth-regulated oncogene-alpha (GRO-α) has been reported to be over-expressed in a series of human cancers including colorectal cancer, melanoma, gastric cancer, hepatocellular carcinoma, and ovarian cancer and was known to regulate multiple biologic activities associated with tumor progression. But the role in human pancreatic cancer remains unclear. To examine the expression of GRO-α and its clinical significance in pancreatic cancer (PC), a total of 12 fresh PC specimens and 12 surrounding normal tissues to detect GRO-α mRNA expression were measured by quantitative real-time polymerase chain reaction (qRT-PCR)...
July 2016: Medicine (Baltimore)
Michael Stotz, Bernadette Liegl-Atzwanger, Florian Posch, Edvin Mrsic, Michael Thalhammer, Tatjana Stojakovic, Angelika Bezan, Martin Pichler, Armin Gerger, Joanna Szkandera
BACKGROUND: Inflammatory blood count biomarkers may improve recurrence risk stratification and inform long-term prognosis of cancer patients. Here, we quantify the prognostic impact of blood-based biomarkers on recurrence risk and long-term survival in a large cohort of gastrointestinal stroma tumor (GIST) patients after curative surgery. METHODS: One-hundred-forty-nine consecutive GIST patients were followed-up for a median period of 4.8 years. Local recurrence, distant metastasis, and death occurred in 9, 21, and 31 patients, respectively...
2016: PloS One
Mohammad W Khan, Viktor Umansky
Melanoma is an aggressive skin cancer, however it is immunogenic. The size of the primary tumor is associated with the nodal metastases. Our goals were to characterize melanoma-associated antigens (MAAs) and tumor-infiltrating T-lymphocytes (TILs) subsets in the few very large tumors (VLTs) developing in ret transgenic mice of melanoma. Tumors >700mg (VLTs) were investigated for MAAs and subsets of TILs. Immunohistochemistry and flow cytometry-based studies were performed to determine the infiltration patterns of T-lymphocytes in VLTs...
September 2016: Pathophysiology: the Official Journal of the International Society for Pathophysiology
Damien Bergeat, Alain Fautrel, Bruno Turlin, Aude Merdrignac, Michel Rayar, Karim Boudjema, Cédric Coulouarn, Laurent Sulpice
BACKGROUND: Intrahepatic cholangiocarcinoma (ICC) is associated with a poor prognosis related to early recurrence especially in the remnant liver after surgery. ICC exhibits a dense desmoplastic stroma which plays a pivotal role in ICC aggressiveness. Thus, analyzing gene deregulation in the stroma of ICC may help to identify new prognosis biomarkers and promising therapeutic targets. The aim of this study was to evaluate the clinical relevance of the matrix-remodeling enzyme lysyl oxidase-like 2 (LOXL2) expression in ICC...
June 15, 2016: Journal of Surgical Research
Petr Busek, Zdislava Vanickova, Petr Hrabal, Marek Brabec, Premysl Fric, Miroslav Zavoral, Jan Skrha, Klara Kmochova, Martin Laclav, Bohus Bunganic, Koen Augustyns, Pieter Van Der Veken, Aleksi Sedo
BACKGROUND/OBJECTIVES: Pancreatic ductal adenocarcinoma (PDAC) is frequently heralded by an impairment of glucose homeostasis. Dipeptidyl peptidase-IV (DPP-IV) and fibroblast activation protein alpha (FAP) are aminopeptidases that regulate several bioactive peptides involved in glucoregulation, and are frequently dysregulated in cancer. The present study analyzes blood plasma levels and the quantity and localization of DPP-IV and FAP in PDAC tissues. METHODS: DPP-IV and FAP concentration and enzymatic activity were evaluated in the plasma from 93 PDAC, 39 type 2 diabetes mellitus (T2DM) and 29 control subjects, and in matched paired non-tumorous and tumor tissues from 48 PDAC patients...
September 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Keishiro Fukumoto, Eiji Kikuchi, Shuji Mikami, Koichiro Ogihara, Kazuhiro Matsumoto, Akira Miyajima, Mototsugu Oya
Tumor budding has been defined as an isolated single cancer cell or a cluster composed of fewer than five cancer cells scattered in the stroma. It is a strong predictor for lymph node metastasis in T1 colorectal cancer. We introduced this concept to T1 non-muscle invasive bladder cancer and evaluated whether tumor budding could have a prognostic impact on the clinical outcome. We identified 121 consecutive patients with newly diagnosed T1 bladder cancer between 1994 and 2014 at Keio University Hospital. All slides were re-reviewed by a dedicated uropathologist...
September 2016: Cancer Science
Raja M Flores, Daniel Nicastri, Thomas Bauer, Ralph Aye, Shahriyour Andaz, Leslie Kohman, Barry Sheppard, William Mayfield, Richard Thurer, Robert Korst, Michaela Straznicka, Fred Grannis, Harvey Pass, Cliff Connery, Rowena Yip, James P Smith, David F Yankelevitz, Claudia I Henschke, Nasser K Altorki
OBJECTIVE: To compare long-term survival rates of patients with first, primary, clinical stage IA nonsmall cell lung cancer from a large cohort undergoing computed tomography screening with and without mediastinal lymph node resection (MLNR) under an Institutional Review Board-approved common protocol from 1992 to 2014. BACKGROUND: Assessing survival differences of patients with and without MLNR manifesting as solid and subsolid nodules. METHODS: Long-term Kaplan-Meier (K-M) survival rates for those with and without MLNR were compared and Cox regression analyses were used to adjust for demographic, computed tomography, and surgical covariates...
May 26, 2016: Annals of Surgery
Lingfu Zhang, Limei Guo, Ming Tao, Wei Fu, Dianrong Xiu
OBJECTIVE: To investigate the frequency of parasympathetic neurogenesis and determine its association with tumor budding and prognosis in pancreatic ductal adenocarcinoma (PDAC). METHODS: Parasympathetic neurogenesis was defined as the distribution of abnormal parasympathetic nerves in the stroma tissue. Staining of vesicular acetylcholine transporter (VAChT), as a marker for parasympathetic neurogenesis, was performed on a representative specimen of the tumor for 59 PDAC patients with available clinical, pathologic, and follow-up information...
April 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
Charu Chandra Saxena, Rajni Safaya, Neha Kawatra Madan, Shah Alam Khan, Venkateswaran K Iyer
Giant cell tumor (GCT) of bone is a benign locally aggressive tumor whose biological behavior is unpredictable. Currently, there are no definitive clinical, histological, biochemical, or immunological parameters that can predict its behavior. This study was undertaken to examine whether delineation of reactive and neoplastic stromal component of GCT can help in this regard. 55 cases of GCT (30 primary, 25 recurrent) were subjected to histopathological grading, immunohistochemistry, and image analysis. Spindling of stroma was more frequent in recurrent GCT with 64% cases having more than 50% spindled stroma (p < 0...
April 2016: Journal of Clinical Orthopaedics and Trauma
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