Read by QxMD icon Read

metabolic tumor burden

Cara C Schafer, Yong Wang, Kenneth P Hough, Anandi Sawant, Stefan C Grant, Victor J Thannickal, Jaroslaw Zmijewski, Selvarangan Ponnazhagan, Jessy S Deshane
Indoleamine 2,3-dioxygenase (IDO) has been implicated in immune evasion by tumors. Upregulation of this tryptophan (Trp)-catabolizing enzyme, in tumor cells and myeloid-derived suppressor cells (MDSCs) within the tumor microenvironment (TME), leads to Trp depletion that impairs cytotoxic T cell responses and survival; however, exact mechanisms remain incompletely understood. We previously reported that a combination therapy of gemcitabine and a superoxide dismutase mimetic promotes anti-tumor immunity in a mouse model of lung cancer by inhibiting MDSCs, enhancing polyfunctional response of CD8+ memory T cells, and extending survival...
September 26, 2016: Oncotarget
James E McDonald, Marcus M Kessler, Michael W Gardner, Amy F Buros, James A Ntambi, Sarah Waheed, Frits van Rhee, Maurizio Zangari, Christoph Heuck, Nathan Petty, Carolina Schinke, Sharmilan Thanendrarajan, Alan Mitchell, Antje Hoering, Bart Barlogie, Gareth Morgan, Faith E Davies
INTRODUCTION: Fluorine-18 fluorodexyglucose positron emission tomography with CT attenuation correction (18F-FDG PET/CT) is useful in the detection and enumeration of focal lesions and in semi-quantitative characterization of metabolic activity (glycolytic phenotype) by calculation of glucose uptake. Total lesion glycolysis (TLG) and metabolic tumor volume (MTV) have the potential to improve the value of this approach and enhance the prognostic value of disease burden measures. This study aims to determine whether TLG and MTV are associated with PFS and OS, and whether they improve risk assessments such as ISS stage and GEP70 risk...
October 3, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Amanda M Pattison, Dante J Merlino, Erik S Blomain, Scott A Waldman
Colorectal cancer (CRC) is a major cause of cancer-related mortality and morbidity worldwide. While improved treatments have enhanced overall patient outcome, disease burden encompassing quality of life, cost of care, and patient survival has seen little benefit. Consequently, additional advances in CRC treatments remain important, with an emphasis on preventative measures. Guanylyl cyclase C (GUCY2C), a transmembrane receptor expressed on intestinal epithelial cells, plays an important role in orchestrating intestinal homeostatic mechanisms...
September 28, 2016: World Journal of Gastroenterology: WJG
H Kuwabara, A Toriihara, K Nakagawa, K Toda, U Tateishi, R I Yoshimura
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Hweixian Leong Penny, Tyler R Prestwood, Nupur Bhattacharya, Fionna Sun, Justin A Kenkel, Matthew G Davidson, Lei Shen, Luis A Zuniga, E Scott Seeley, Reetesh Pai, Okmi Choi, Lorna Tolentino, Jinshan Wang, Joseph L Napoli, Edgar G Engleman
Chronic intestinal inflammation accompanies familial adenomatous polyposis (FAP) and is a major risk factor for colorectal cancer in patients with this disease, but the cause of such inflammation is unknown. Because retinoic acid (RA) plays a critical role in maintaining immune homeostasis in the intestine, we hypothesized that altered RA metabolism contributes to inflammation and tumorigenesis in FAP. To assess this hypothesis, we analyzed RA metabolism in the intestines of patients with FAP as well as APC(Min/+) mice, a model that recapitulates FAP in most respects...
September 16, 2016: Cancer Immunology Research
M Miler, N Nikolac, D Segulja, S Kackov Maslac, I Celap, K Altabas, S Sefer, A M Simundic
PURPOSE: Low-grade chronic inflammation is present in patients on peritoneal dialysis (PD) and in metabolic syndrome (MS). Due to possible greater endothelial changes in dialyzed patients, inflammatory response and oxidative stress are probably stronger in patients on PD. The objective of the study was to investigate possible in between adipokines, inflammatory, endothelial and oxidative stress markers between MS patients and patients on PD. METHODS: Concentrations of adipokines (leptin, resistin), inflammatory markers [interleukin-6 (IL-6), soluble tumor necrosis factor alpha receptor (sTNF-R), myeloperoxidase (MPO), monocyte chemoattractant protein 1 (MCP-1)] and endothelial markers [soluble intracellular adhesion molecule-1 (sICAM-1), soluble CD40 ligand (sCD40L)] were determined in 55 MS patients and 18 patients on PD, with flow cytometry, and visfatin concentration was measured with ELISA...
September 6, 2016: Journal of Endocrinological Investigation
Nupur Bhattacharya, Robert Yuan, Tyler R Prestwood, Hweixian Leong Penny, Michael A DiMaio, Nathan E Reticker-Flynn, Charles R Krois, Justin A Kenkel, Tho D Pham, Yaron Carmi, Lorna Tolentino, Okmi Choi, Reyna Hulett, Jinshan Wang, Daniel A Winer, Joseph L Napoli, Edgar G Engleman
Although all-trans-retinoic acid (atRA) is a key regulator of intestinal immunity, its role in colorectal cancer (CRC) is unknown. We found that mice with colitis-associated CRC had a marked deficiency in colonic atRA due to alterations in atRA metabolism mediated by microbiota-induced intestinal inflammation. Human ulcerative colitis (UC), UC-associated CRC, and sporadic CRC specimens have similar alterations in atRA metabolic enzymes, consistent with reduced colonic atRA. Inhibition of atRA signaling promoted tumorigenesis, whereas atRA supplementation reduced tumor burden...
September 20, 2016: Immunity
Sarah J Nelson, Achuta K Kadambi, Ilwoo Park, Yan Li, Jason Crane, Marram Olson, Annette Molinaro, Ritu Roy, Nicholas Butowski, Soonmee Cha, Susan Chang
BACKGROUND: The heterogeneous biology of glioblastoma (GBM) emphasizes the need for imaging methods to assess tumor burden and assist in evaluating individual patients. The purpose of this study was to investigate early changes in metrics from 3D (1)H magnetic resonance spectroscopic imaging (MRSI) data, compare them with anatomic lesion volumes, and determine whether they were associated with survival for patients with newly diagnosed GBM receiving a multimodality treatment regimen. METHODS: Serial MRI and MRSI scans provided estimates of anatomic lesion volumes and levels of choline, creatine, N-acetylaspartate, lactate, and lipid...
August 30, 2016: Neuro-oncology
Johannes Fabian, Desirée Opitz, Kristina Althoff, Marco Lodrini, Barbara Hero, Ruth Volland, Anneleen Beckers, Katleen de Preter, Anneleen Decock, Nitin Patil, Mohammed Abba, Annette Kopp-Schneider, Kathy Astrahantseff, Jasmin Wünschel, Sebastian Pfeil, Maria Ercu, Annette Künkele, Jamie Hu, Theresa Thole, Leonille Schweizer, Gunhild Mechtersheimer, Daniel Carter, Belamy B Cheung, Odilia Popanda, Andreas V Deimling, Jan Koster, Rogier Versteeg, Manfred Schwab, Glenn M Marshall, Frank Speleman, Ulrike Erb, Margot Zoeller, Heike Allgayer, Thorsten Simon, Matthias Fischer, Andreas E Kulozik, Angelika Eggert, Olaf Witt, Johannes H Schulte, Hedwig E Deubzer
The systemic and resistant nature of metastatic neuroblastoma renders it largely incurable with current multimodal treatment. Clinical progression stems mainly from the increasing burden of metastatic colonization. Therapeutically inhibiting the migration-invasion-metastasis cascade would be of great benefit, but the mechanisms driving this cycle are as yet poorly understood. In-depth transcriptome analyses and ChIP-qPCR identified the cell surface glycoprotein, CD9, as a major downstream player and direct target of the recently described GRHL1 tumor suppressor...
August 27, 2016: Oncotarget
Michel Meignan, Anne Ségolène Cottereau, Annibale Versari, Loïc Chartier, Jehan Dupuis, Sami Boussetta, Ilaria Grassi, René-Olivier Casasnovas, Corinne Haioun, Hervé Tilly, Vittoria Tarantino, Julien Dubreuil, Massimo Federico, Gilles Salles, Stefano Luminari, Judith Trotman
PURPOSE: Identifying patients at high risk of progression and early death among those with high-tumor-burden follicular lymphoma (FL) is unsatisfactory with current prognostic models. This study aimed to determine the prognostic impact of the total metabolic tumor volume (TMTV) measured at baseline with [(18)F]fluorodeoxyglucose/positron emission tomography-computed tomography ([(18)F]FDG/PET-CT) scans and its added value to these models. PATIENTS AND METHODS: A pooled analysis was performed by using patient data and centrally reviewed baseline PET-CT scans for 185 patients with FL who were receiving immunochemotherapy within three prospective trials...
August 22, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
Anna Salazar-Degracia, David Blanco, Mònica Vilà-Ubach, Gabriel de Biurrun, Carlos Ortiz de Solórzano, Luis M Montuenga, Esther Barreiro
BACKGROUND: Muscle wasting negatively impacts the progress of chronic diseases such as lung cancer (LC) and emphysema, which are in turn interrelated. OBJECTIVES: We hypothesized that muscle atrophy and body weight loss may develop in an experimental mouse model of lung carcinogenesis, that the profile of alterations in muscle fiber phenotype (fiber type composition and morphometry, muscle structural alterations, and nuclear apoptosis), and in muscle metabolism are similar in both respiratory and limb muscles of the tumor-bearing mice, and that the presence of underlying emphysema may influence those events...
2016: Journal of Translational Medicine
Alzbeta Hulikova, Nicholas Black, Lin-Ting Hsia, Jennifer Wilding, Walter F Bodmer, Pawel Swietach
Proliferation and invasion of cancer cells require favorable pH, yet potentially toxic quantities of acid are produced metabolically. Membrane-bound transporters extrude acid from cancer cells, but little is known about the mechanisms that handle acid once it is released into the poorly perfused extracellular space. Here, we studied acid handling by myofibroblasts (colon cancer-derived Hs675.T, intestinal InMyoFib, embryonic colon-derived CCD-112-CoN), skin fibroblasts (NHDF-Ad), and colorectal cancer (CRC) cells (HCT116, HT29) grown in monoculture or coculture...
September 6, 2016: Proceedings of the National Academy of Sciences of the United States of America
Sarah J Nelson, Yan Li, Janine M Lupo, Marram Olson, Jason C Crane, Annette Molinaro, Ritu Roy, Jennifer Clarke, Nicholas Butowski, Michael Prados, Soonmee Cha, Susan M Chang
Interpretation of changes in the T1- and T2-weighted MR images from patients with newly diagnosed glioblastoma (GBM) treated with standard of care in conjunction with anti-angiogenic agents is complicated by pseudoprogression and pseudoresponse. The hypothesis being tested in this study was that 3D H-1 magnetic resonance spectroscopic imaging (MRSI) provides estimates of levels of choline, creatine, N-acetylaspartate (NAA), lactate and lipid that change in response to treatment and that metrics describing these characteristics are associated with survival...
August 17, 2016: Journal of Neuro-oncology
Natalie J Serkova, S Gail Eckhardt
For several decades, cytotoxic chemotherapeutic agents were considered the basis of anticancer treatment for patients with metastatic tumors. A decrease in tumor burden, assessed by volumetric computed tomography and magnetic resonance imaging, according to the response evaluation criteria in solid tumors (RECIST), was considered as a radiological response to cytotoxic chemotherapies. In addition to RECIST-based dimensional measurements, a metabolic response to cytotoxic drugs can be assessed by positron emission tomography (PET) using (18)F-fluoro-thymidine (FLT) as a radioactive tracer for drug-disrupted DNA synthesis...
2016: Frontiers in Oncology
Giovanni Galati, Chiara Dell'Unto, Umberto Vespasiani-Gentilucci, Antonio De Vincentis, Paolo Gallo, Alessandro Guidi, Antonio Picardi
Hepatocellular Carcinoma (HCC) is a major healthcare problem. Almost ninety percent of HCCs develops on cirrhosis due to chronic viral hepatitis, Non-Alcoholic Steatohepatitis (NASH) and alcohol abuse. Alcohol itself is defined a strong human carcinogenic agent. Some genetic polymorphisms in alcohol-metabolizing systems and more recently, some sequence variations within the genes coding for patatin-like phospholipase encoding 3 (PNPLA3) and Transmembrane 6 superfamily 2 (TM6SF2), have been found to promote liver fibrosis in alcohol abuse, until HCC development...
2016: Reviews on Recent Clinical Trials
Yi-Tung T Huang, Joomann Park, Shanley Chong, Thomas J Hugh, Weng Leong Ng, Michael Lin
BACKGROUND: Management of colorectal liver metastasis (CRLM) is evolving but surgery remains the most effective treatment in improving survival. Optimal preoperative patient selection is important and semiquantitative F-18 fluorodeoxyglucose positron emission tomography (PET) parameters may provide valuable prognostic information. METHODS: Sixty-one patients with solitary CRLM as first site of distant dissemination and preoperatively staged with PET were retrospectively studied...
July 25, 2016: Asia-Pacific Journal of Clinical Oncology
Aditi A Narsale, Melissa J Puppa, Justin P Hardee, Brandon N VanderVeen, Reilly T Enos, E Angela Murphy, James A Carson
Cancer cachexia is a complex wasting condition characterized by chronic inflammation, disrupted energy metabolism, and severe muscle wasting. While evidence in pre-clinical cancer cachexia models have determined that different systemic inflammatory inhibitors can attenuate several characteristics of cachexia, there is a limited understanding of their effects after cachexia has developed, and whether short-term administration is sufficient to reverse cachexia-induced signaling in distinctive target tissues. Pyrrolidine dithiocarbamate (PDTC) is a thiol compound having anti-inflammatory and antioxidant properties which can inhibit STAT3 and nuclear factor κB (NF-κB) signaling in mice...
July 19, 2016: Oncotarget
Charles Marcus, Rick Wray, Mehdi Taghipour, Wael Marashdeh, Se Jin Ahn, Esther Mena, Rathan M Subramaniam
OBJECTIVE: The purpose of this study was to evaluate the impact of quantitative PET parameters in the overall survival of patients with recurrent colorectal cancer. MATERIALS AND METHODS: A total of 105 patients with a biopsy-proven recurrence of colorectal cancer who underwent PET/CT were included in the study. A gradient segmentation method was used to calculate maximum and peak standardized uptake values (SUVmax, SUVpeak), total lesion glycolysis (TLGtotal), and metabolic tumor volume (MTVtotal)...
August 2016: AJR. American Journal of Roentgenology
Marie T Kim, Samarchith P Kurup, Gabriel R Starbeck-Miller, John T Harty
As a result of the growing burden of tumors and chronic infections, manipulating CD8 T cell responses for clinical use has become an important goal for immunologists. In this article, we show that dendritic cell (DC) immunization coupled with relatively early (days 1-3) or late (days 4-6) administration of enhanced IL-2 signals increase peak effector CD8 T cell numbers, but only early IL-2 signals enhance memory numbers. IL-2 signals delivered at relatively late time points drive terminal differentiation and marked Bim-mediated contraction and do not increase memory T cell numbers...
September 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
U Löbel, S Hwang, A Edwards, Y Li, X Li, A Broniscer, Z Patay
INTRODUCTION: Based on clinical observations, we hypothesized that in infiltrative high-grade brainstem neoplasms, such as diffuse intrinsic pontine glioma (DIPG), longitudinal metabolic evaluation of the tumor by magnetic resonance spectroscopy (MRS) may be more accurate than volumetric data for monitoring the tumor's biological evolution during standard treatment. METHODS: We evaluated longitudinal MRS data and corresponding tumor volumes of 31 children with DIPG...
July 20, 2016: Neuroradiology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"