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https://www.readbyqxmd.com/read/29152626/specific-recognition-of-cr-3-under-physiological-conditions-by-allyl-substituted-appendage-rhodamine-and-its-cell-imaging-studies
#1
Anup Kumar Bhanja, Snehasis Mishra, Kaushik Naskar, Suvendu Maity, Krishna Das Saha, Chittaranjan Sinha
An allyloxynitrophenylimio-propylhydroxyl appended rhodamine (RD-3) specifically recognises Cr(3+) in aqueous buffer medium at pH 7.4. The visible light excitable reagent (λex 505 nm) on selective binding to Cr(3+) exhibited a strong fluorescence turn-on response with powerful emission at 557 nm and the tail of this luminescence band is extended to ∼650 nm. Interference studies confirm that other metal ions (27 ions) do not hamper the detection process of Cr(3+). The sensing mechanism is studied by absorption, fluorescence, Job's plot, and (1)H NMR titration studies...
November 20, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29152088/aspirin-exerts-high-anti-cancer-activity-in-pik3ca-mutant-colon-cancer-cells
#2
Mancang Gu, Reiko Nishihara, Yang Chen, Wanwan Li, Yan Shi, Yohei Masugi, Tsuyoshi Hamada, Keisuke Kosumi, Li Liu, Annacarolina da Silva, Jonathan A Nowak, Tyler Twombly, Chunxia Du, Hideo Koh, Wenbin Li, Jeffrey A Meyerhardt, Brian M Wolpin, Marios Giannakis, Andrew J Aguirre, Adam J Bass, David A Drew, Andrew T Chan, Charles S Fuchs, Zhi Rong Qian, Shuji Ogino
Evidence suggests that nonsteroidal anti-inflammatory drug aspirin (acetylsalicylic acid) may improve patient survival in PIK3CA-mutant colorectal carcinoma, but not in PIK3CA-wild-type carcinoma. However, whether aspirin directly influences the viability of PIK3CA-mutant colon cancer cells is poorly understood. We conducted in vitro experiments to test our hypothesis that the anti-proliferative activity of aspirin might be stronger for PIK3CA-mutant colon cancer cells than for PIK3CA-wild-type colon cancer cells...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151923/p300-knockout-promotes-butyrate-resistance
#3
Darina L Lazarova, Michael Bordonaro
Dietary fiber is linked to a reduced risk of colorectal cancer (CRC), and this protective activity is likely due to its fermentation product, butyrate. Dependent upon the hyperactivation of Wnt signaling, butyrate represses CRC cell growth and induces apoptosis. However, resistance to butyrate activity may allow for CRC development even in the context of relatively high fiber intake. We have previously determined that CRC cells resistant to butyrate are deficient in p300 expression. The histone acetylase p300 influences colonic cell signaling and physiology through effects on Wnt signaling...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29108382/clinicopathologic-features-and-prognostic-factors-for-patients-with-colorectal-cancer-who-are-75-years-and-older
#4
Mingfang Zhao, Hans Liu, Yanqing Tang, Xin Meng, Jun Yu, Qi Wang, Qiao Zhou, Sean X Leng, Haiyan Zhang
Colorectal cancer (CRC) is common and can be considered as a disease of older adults. About one half of the cases were diagnosed in patients over 70 years of age. Decision-making about treatment for these older patients can be complicated by age-related physiological changes, impaired functional status, limited social support, and comorbidities. Many trials excluded patients using an upper limit of 75 years of age. Little is known about prognostic factors in patients who are over this age limit. In this study, we conducted an analysis in the Surveillance, Epidemiology and End Results (SEER) database to identify specific clinicopathologic features and prognostic factors for these vulnerable cancer patients (N= 293,616)...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29094026/establishing-a-colorectal-cancer-liver-metastasis-patient-derived-tumor-xenograft-model-for-the-evaluation-of-personalized-chemotherapy
#5
Joohee Jung, Jisup Kim, Hyun Kyung Lim, Kyoung Mee Kim, Yun Sun Lee, Joon Seong Park, Dong Sup Yoon
Purpose: In order to suggest optimal anticancer drugs for patient-tailored chemotherapy, we developed a colorectal cancer (CRC)-liver metastasis patient-derived tumor xenograft (PDTX) model. Methods: Tissue obtained from a patient with CRC-liver metastasis (F0) was transplanted in a nonobese female mouse with diabetic/severe combined immune deficiency (F1) and the tumor tissue was retransplanted into nude mice (F2). When tumor volumes reached ~500 mm(3), the F2 mice were randomly divided into 4 groups (n = 4/group) of doxorubicin, cisplatin, docetaxel, and nontreated control groups...
October 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29081902/development-of-a-telehealth-monitoring-service-after-colorectal-surgery-a-feasibility-study
#6
Damian D Bragg, Helena Edis, Sian Clark, Simon L Parsons, Binoy Perumpalath, Dileep N Lobo, Charles A Maxwell-Armstrong
AIM: To evaluate the feasibility of a text-messaging system to remotely monitor and support patients after discharge following elective colorectal surgery, within an enhanced recovery protocol. METHODS: Florence (FLO) is a National Health Service telehealth solution utilised for monitoring chronic health conditions, such as hypertension, using text-messaging. New algorithms were designed to monitor the well-being, basic physiological observations and any patient-reported symptoms, and provide support messages to patients undergoing colorectal surgery within an enhanced recovery after surgery protocol for 30 d after discharge...
September 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29066771/therapeutic-potential-of-the-phosphino-cu-i-complex-hydrocup-in-the-treatment-of-solid-tumors
#7
Valentina Gandin, Cecilia Ceresa, Giovanni Esposito, Stefano Indraccolo, Marina Porchia, Francesco Tisato, Carlo Santini, Maura Pellei, Cristina Marzano
[Cu(thp)4][PF6] (HydroCuP) is a phosphino copper(I) complex highly soluble and stable in physiological media that has been developed as a possible viable alternative to platinum-based drugs for anticancer therapy. HydroCuP potently inhibited the growth of human cancer cells derived from solid tumors by inducing endoplasmatic reticulum (ER) stress thus leading to cell death through paraptosis with a preferential efficacy against cancer rather than non-cancer cells. Aim of the present study was to assess the therapeutic potential of HydroCuP in vivo, in syngenic and xenograft murine models of solid tumors by triggering the Unfolded Protein Response (UPR) pathway...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29056339/wild-mouse-gut-microbiota-promotes-host-fitness-and-improves-disease-resistance
#8
Stephan P Rosshart, Brian G Vassallo, Davide Angeletti, Diane S Hutchinson, Andrew P Morgan, Kazuyo Takeda, Heather D Hickman, John A McCulloch, Jonathan H Badger, Nadim J Ajami, Giorgio Trinchieri, Fernando Pardo-Manuel de Villena, Jonathan W Yewdell, Barbara Rehermann
Laboratory mice, while paramount for understanding basic biological phenomena, are limited in modeling complex diseases of humans and other free-living mammals. Because the microbiome is a major factor in mammalian physiology, we aimed to identify a naturally evolved reference microbiome to better recapitulate physiological phenomena relevant in the natural world outside the laboratory. Among 21 distinct mouse populations worldwide, we identified a closely related wild relative to standard laboratory mouse strains...
November 16, 2017: Cell
https://www.readbyqxmd.com/read/29052140/prion-protein-family-contributes-to-tumorigenesis-via-multiple-pathways
#9
Xiaowen Yang, Zhijun Cheng, Lihua Zhang, Guiru Wu, Run Shi, Zhenxing Gao, Chaoyang Li
A wealth of evidence suggests that proteins from prion protein (PrP) family contribute to tumorigenesis in many types of cancers, including pancreatic ductal adenocarcinoma (PDAC), breast cancer, glioblastoma, colorectal cancer, gastric cancer, melanoma, etc. It is well documented that PrP is a biomarker for PDAC, breast cancer, and gastric cancer. However, the underlying mechanisms remain unclear. The major reasons for cancer cell-caused patient death are metastasis and multiple drug resistance, both of which connect to physiological functions of PrP expressing in cancer cells...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29018212/enhanced-therapeutic-treatment-of-colorectal-cancer-using-surface-modified-nanoporous-acupuncture-needles
#10
Bo Ram Lee, Hye-Rim Kim, Eun-Sook Choi, Jung-Hoon Cho, Nam-Jun Kim, Jung-Hee Kim, Kyeong-Min Lee, Abdul Razzaq, Hansaem Choi, Yunju Hwang, Craig A Grimes, Bong-Hyo Lee, Eunjoo Kim, Su-Il In
Acupuncture originated within the auspices of Oriental medicine, and today is used as an alternative method for treating various diseases and symptoms. The physiological mechanisms of acupuncture appear to involve the release of endogenous opiates and neurotransmitters, with the signals mediating through electrical stimulation of the central nervous system (CNS). Earlier we reported a nanoporous stainless steel acupuncture needle with enhanced therapeutic properties, evaluated by electrophysiological and behavioral responses in Sprague-Dawley (SD) rats...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28994324/self-assembling-ha-pei-dsrna-p21-ternary-complexes-for-cd44-mediated-small-active-rna-delivery-to-colorectal-cancer
#11
Chen-Lin Feng, Yan-Xing Han, Hui-Hui Guo, Xiao-Lei Ma, Zhi-Qiang Wang, Lu-Lu Wang, Wen-Sheng Zheng, Jian-Dong Jiang
Our previous work proved that sequence specific double strand RNA (dsRNA-p21) effectively activated p21 gene expression of colorectal cancer (CRC) cells and consequently suppressed CRC growth. However, efficient delivery system is a significant challenge to achieve sufficient therapy. In this study, a self-assembled HA/PEI/dsRNA-p21 ternary complex (TC-dsRNA-p21) was developed for the tumor-target delivery of dsRNA-p21 into CRC cells. Hyaluronic acid (HA) was introduced to shield the PEI/dsRNA-p21 binary complexes (BC-dsRNA-p21) for reducing the cytotoxicity of PEI and for increasing the tumor-targeted intracellular uptake by cancer cells through HA-CD44 mediated endocytosis...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28966238/cancer-vaccine-therapy-using-tumor-endothelial-cells-as-antigens-suppresses-solid-tumor-growth-and-metastasis
#12
Tetsuya Nomura, Keiichi Hirata, Takuto Shimaoka, Makie Yamakawa, Naoya Koizumi, Ryo Suzuki, Kazuo Maruyama, Naoki Utoguchi
Tumor angiogenesis plays an important role in tumor growth and metastasis, with tumor cells requiring nutrients and oxygen via blood flow for their proliferation. In comparison, angiogenesis also occurs under normal physiological conditions, such as wound healing and in the formation of the corpus luteum. Herein, we report on the development of a novel dendritic cell (DC) vaccine therapy using tumor endothelial cells (TECs) derived from tumor vessels as tumor antigens. After density gradient centrifugation and the detection of angiotensin-converting enzyme activities, a TEC-rich fraction was separated from solid tumor tissues...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28957212/noninvasive-photoacoustic-identification-and-imaging-of-gut-microbes
#13
Xiaoxiao Huang, Ying Shi, Yajing Liu, Hongzhi Xu, Yu Liu, Chuanxing Xiao, Jianlin Ren, Liming Nie
Homeostasis of the gut microbiota is indispensable for various physiological functions. Its composition and activity co-develop with the host, and especially associate with human colorectal cancer. However, current composition identification methods are complicated and not timely without spatial distribution information. In this Letter, we explored the photoacoustic imaging (PAI) technique to characterize the composition and quantify the proportions of the gut microbes after optical probe labeling. Our experimental results demonstrated that PAI has the potential to identify different gut bacterial species on the spot...
August 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28948012/enhanced-recovery-protocols-for-colorectal-surgery-and-postoperative-renal-function-a-retrospective-review
#14
Charles R Horres, Mohamed A Adam, Zhifei Sun, Julie K Thacker, Richard E Moon, Timothy E Miller, Stuart A Grant
BACKGROUND: While enhanced recovery protocols (ERPs) reduce physiologic stress and improve outcomes in general, their effects on postoperative renal function have not been directly studied. METHODS: Patients undergoing major colorectal surgery under ERP (February 2010 to March 2013) were compared with a traditional care control group (October 2004 October 2007) at a single institution. Multivariable regression models examined the association of ERP with postoperative creatinine changes and incidence of postoperative acute kidney dysfunction (based on the Risk, Injury, Failure, Loss, and End-stage renal disease criteria)...
2017: Perioperative Medicine
https://www.readbyqxmd.com/read/28947862/a-review-on-eph-ephrin-angiogenesis-and-lymphangiogenesis-in-gastric-colorectal-and-pancreatic-cancers
#15
Julia Rudno-Rudzińska, Wojciech Kielan, Ewelina Frejlich, Krzysztof Kotulski, Wojciech Hap, Krzysztof Kurnol, Przemysław Dzierżek, Marcin Zawadzki, Agnieszka Hałoń
Erythroprotein-producing human hepatocellular carcinoma receptors (Eph receptors) compose a subfamily of transmembrane protein-tyrosine kinases receptors that takes part in numerous physiological and pathological processes. Eph family receptor-interacting proteins (Ephrins) are ligands for those receptors. Eph/ephrin system is responsible for the cytoskeleton activity, cell adhesion, intercellular connection, cellular shape as well as cell motility. It affects neuron development and functioning, bone and glucose homeostasis, immune system and correct function of enterocytes...
August 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28946660/molecular-mechanisms-and-pathways-as-targets-for-cancer-prevention-and-progression-with-dietary-compounds
#16
REVIEW
Nagisa Nosrati, Marica Bakovic, Gopinadhan Paliyath
A unique feature of bioactive food ingredients is their broad antioxidant function. Antioxidants having a wide spectrum of chemical structure and activity beyond basic nutrition; display different health benefits by the prevention and progression of chronic diseases. Functional food components are capable of enhancing the natural antioxidant defense system by scavenging reactive oxygen and nitrogen species, protecting and repairing DNA damage, as well as modulating the signal transduction pathways and gene expression...
September 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28943897/role-of-liver-icam-1-in-metastasis
#17
Aitor Benedicto, Irene Romayor, Beatriz Arteta
Intercellular adhesion molecule (ICAM)-1, is a transmembrane glycoprotein of the immunoglobulin (Ig)-like superfamily, consisting of five extracellular Ig-like domains, a transmembrane domain and a short cytoplasmic tail. ICAM-1 is expressed in various cell types, including endothelial cells and leukocytes, and is involved in several physiological processes. Furthermore, it has additionally been reported to be expressed in various cancer cells, including melanoma, colorectal cancer and lymphoma. The majority of studies to date have focused on the expression of the ICAM-1 on the surface of tumor cells, without research into ICAM-1 expression at sites of metastasis...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28939937/-cellular-senescence-and-colorectal-cancer
#18
REVIEW
S Foersch
Apart from proliferation and cell death, cellular senescence is an important response to numerous stress-associated stimuli. Originally described as an in vitro phenomenon, it is involved in various physiological and pathophysiological processes. For example, during the development of solid and generalized tumors, senescence induction poses an important barrier against disease progression. This could be demonstrated for malignant lymphomas, melanomas and various carcinomas using sophisticated animal models...
September 22, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28932126/dermopathy-associated-with-cetuximab-and-panitumumab-investigation-of-the-usefulness-of-moisturizers-in-its-management
#19
Shoichi Watanabe, Motoki Nakamura, Hiroki Takahashi, Masayasu Hara, Kei Ijichi, Daisuke Kawakita, Akimichi Morita
AIMS: Limited data regarding the objective evaluation of skin exsiccation caused by epidermal growth factor receptor (EGFR) inhibitors exist. Objective indices were applied to evaluate the usefulness of a moisturizer against skin exsiccation associated with the use of EGFR inhibitors in cancer patients. PATIENTS AND METHODS: Patients with either colorectal or head and neck cancer treated with either cetuximab or panitumumab were randomly assigned 1:2 to the prophylactic-treatment arm, where participants received prophylactical moisturizer treatment (heparinoid preparation, Hirudoid(®)), or to the symptomatic-treatment arm, where moisturizer was applied after the onset of cutaneous symptoms...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/28930188/cytotoxic-and-apoptotic-activities-of-prunus-spinosa-trigno-ecotype-extract-on-human-cancer-cells
#20
Stefania Meschini, Evelin Pellegrini, Maria Condello, Giovanni Occhionero, Sebastiano Delfine, Giancarlo Condello, Franco Mastrodonato
The aim of this work was to demonstrate that a natural compound, not-toxic to normal cells, has cytotoxic and sensitizing effects on carcinoma cells, with the final goal of combining it with chemotherapeutic drugs to reduce the overall dose. Prunus spinosa Trigno ecotype (PsT) drupe extract with a nutraceutical activator complex (NAC) made of amino acids, vitamins and mineral salt blends, has shown in vitro anticancer activity. The cytotoxic effect of (PsT + NAC)(®) has been evaluated on human cancer cells, with an initial screening with colorectal, uterine cervical, and bronchoalveolar cells, and a subsequent focus on colon carcinoma cells HCT116 and SW480...
September 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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