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https://www.readbyqxmd.com/read/28110190/actein-ameliorates-hepatobiliary-cancer-through-stemness-and-p53-signaling-regulation
#1
Rui Xi, Li-Juan Wang
Actein is isolated from the rthizomes of Cimicifuga foetida, which is a triterpene glycoside, displaying suppressive effects on breast cancer cells proliferation. However, the effects of actein treatment on liver injury, tending to cancer, have little to be known. Thus, the study is conducted to explore the role of actein in early liver cancer. Diethylnitrosamine (DEN) was used to induce liver cancer in mice followed by actein treatment at different concentrations. DEN caused steatohepatitis supported by fibrosis and inflammation, which were ameliorated for actein administration...
January 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28109906/succinate-in-the-cancer-immune-cycle
#2
Shuai Jiang, Wei Yan
Succinate is an important intermediate of the tricarboxylic acid (TCA) cycle. In mitochondria, it plays a crucial role in generating adenosine triphosphate. Succinate metabolism is also intertwined with the metabolism of other metabolites and with the "GABA shunt" of the glutamine pathway. Recently, it has become increasingly apparent that the roles of succinate extend into the realms of immunity and cancer. Succinate is a key modulator of the hypoxic response, an important player in tumorigenesis; succinate is also involved in protein succinylation, a novel posttranslational modification pathway...
January 18, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28109400/tumor-infiltrating-lymphocytes-in-gastrointestinal-tumors-controversies-and-future-clinical-implications
#3
REVIEW
Cinzia Solinas, Grazia Pusole, Laura Demurtas, Marco Puzzoni, Roberta Mascia, Gilberto Morgan, Riccardo Giampieri, Mario Scartozzi
Chronic inflammation following infections, autoimmune diseases or exposure to environmental irritants plays a crucial role in tumor development and influences the host immune response to neoplastic cells. The presence of an anti-tumor immune infiltrate is often associated with better outcomes in gastro-intestinal primary cancers, particularly in those with high microsatellite instability (MSI-H). Immunotherapeutic drugs inhibiting the PD-1 and PD-L1 pathway showed promising results in the treatment of these patients in the metastatic setting...
February 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28109025/immune-regulation-by-t-regulatory-cells-in-hbv-related-inflammation-and-cancer
#4
REVIEW
Nirupama Trehanpati, Ashish Kumar Vyas
Hepatocellular carcinoma (HCC) is the leading cause of cancer death and hepatitis B virus (HBV) infection is one of the commonest causes in Asians countries. India has the second largest pool after China for hepatitis B infected subjects. HBV clearance is T cell dependent and one of the reason for T cells hypo responsiveness is due to mass production of Tregs through activation of Notch signaling, which suppressCD4/CD8 T cells. Regulatory T cells (Tregs) are important to maintain cellular homeostasis; however during viral infection increase of Tregs is inversely proportional to HBV DNA titers...
January 21, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28108629/myeloid-stat3-promotes-lung-tumorigenesis-by-transforming-tumor-immunosurveillance-into-tumor-promoting-inflammation
#5
Jingjiao Zhou, Zhaoxia Qu, Fan Sun, Lei Han, Liwen Li, Shapei Yan, Laura P Stabile, Lin-Feng Chen, Jill M Siegfried, Gutian Xiao
One of the most fundamental and challenging questions in the cancer field is how immunity in cancer patients is transformed from tumor immunosurveillance to tumor-promoting inflammation. Here, we identify the transcription factor STAT3 as the culprit responsible for this pathogenic event in lung cancer development. We found that antitumor type 1 CD4(+) T helper (Th1) cells and CD8(+) T cells were directly counter-balanced in lung cancer development with tumor-promoting myeloid-derived suppressor cells (MDSCs) and suppressive macrophages, and that activation of STAT3 in MDSCs and macrophages promoted tumorigenesis through pulmonary recruitment and increased resistance of suppressive cells to CD8(+) T cells, enhancement of cytotoxicity towards CD4(+) and CD8(+) T cells, induction of regulatory T cell (Treg), inhibition of dendritic cells (DCs), and polarization of macrophages toward the M2 phenotype...
January 20, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28108625/combined-parthenolide-and-balsalazide-have-enhanced-antitumor-efficacy-through-blockade-of-nf-%C3%AE%C2%BAb-activation
#6
Se-Lim Kim, Seong Hun Kim, Young Ran Park, Yu-Chuan Liu, Eun-Mi Kim, Hwan-Jeong Jeong, Yo Na Kim, Seung Young Seo, In Hee Kim, Seung Ok Lee, Soo Teik Lee, Sang-Wook Kim
: Balsalazide is a colon-specific prodrug of 5-aminosalicylate that is associated with a reduced risk of colon cancer in patients with ulcerative colitis. Parthenolide, a strong NF-κB inhibitor, has recently been demonstrated to be a promising therapeutic agent, promoting apoptosis of cancer cells. In the current study, the antitumor effect of balsalazide combined with parthenolide in human colorectal cancer cells and colitis-associated colon cancers (CAC) was investigated. The results demonstrate that the combination of balsalazide and parthenolide markedly suppress proliferation, nuclear translocation of NF-κB, IκB-α phosphorylation, NF-κB DNA binding, and expression of NF-κB targets...
November 14, 2016: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108624/inflammatory-molecule-psgl-1-deficiency-activates-macrophages-to-promote-colorectal-cancer-growth-through-nf-kappab-signaling
#7
Jiangchao Li, Zeqi Zhou, Xiaohan Zhang, Li Zheng, Dan He, Yuxiang Ye, Qian-Qian Zhang, Cui-Ling Qi, Xiao-Dong He, Chen Yu, Chun-Kui Shao, Liang Qiao, Lijing Wang
: P-selectin glycoprotein ligand 1 (SELPLG/PSGL-1) is an inflammatory molecule that is functionally related to immune cell differentiation and leukocyte mobilization. However, the role of PSGL-1 in tumor development remains unknown. Therefore, this study investigates the mechanistic role of PSGL-1 in the development of intestinal tumors in colorectal cancer (CRC). ApcMin/+ mice, are highly susceptible to spontaneous intestinal adenoma formation, and were crossbred with PSGL1-null mice to generate compound transgenic mice with a ApcMin/+;PSGL-1-/- genotype...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108024/isolation-of-isoflavones-from-iris-kashmiriana-baker-as-potential-anti-proliferative-agents-targeting-nf-kappab
#8
Afroze Alam, Varun Jaiswal, Sohail Akhtar, B S Jayashree, K L Dhar
Cancer is possibly one of the most devastating and complex disease and therefore involves chemotherapy as one of the frontline strategies in its therapy. However, expected toxicity and resistance with chemotherapeutic agents encourage us to use the plant derived natural chemotherapeutic sources at the clinical stage of cancer therapy. In view of this strategy, herein new glycosides and isoflavonoids were isolated from Iris kashmiriana Baker and subjected to structure elucidation followed by their biological evaluation...
January 17, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28107678/nobiletin-and-its-colonic-metabolites-suppress-colitis-associated-colon-carcinogenesis-by-down-regulating-inos-inducing-antioxidative-enzymes-and-arresting-cell-cycle-progression
#9
Xian Wu, Mingyue Song, Zili Gao, Yue Sun, Minqi Wang, Fang Li, Jinkai Zheng, Hang Xiao
Nobiletin (NOB) is a major citrus polymethoxyflavone (PMF) with various beneficial biological activities. We reported previously that dietary NOB significantly inhibited colitis-associated colon carcinogenesis in azoxymethane (AOM)/dextran sulfate sodium (DSS)-treated mice, and the chemopreventive effects were associated with NOB metabolites found in the mouse colonic tissues. In this study, to better understand the role of colonic metabolites of NOB, we determined the anti-inflammation and anticancer effects of a mixture of NOB and its major metabolites (NOB-Met) at the concentrations equivalent to those found in colonic tissues of NOB-fed mice...
January 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28107044/quercetin-attenuates-cell-survival-inflammation-and-angiogenesis-via-modulation-of-akt-signaling-in-murine-t-cell-lymphoma
#10
Akhilendra Kumar Maurya, Manjula Vinayak
AKT signaling is important to maintaining normal physiology. Hyperactivation of AKT signaling is frequent in cancer, which maintains a high oxidative state in a tumor microenvironment that is needed for tumor adaptation. Therefore, antioxidants are proposed to exhibit anticancer properties by interfering with the tumor microenvironment. Quercetin is an ubiquitous bioactive antioxidant rich in vegetables and beverages. The present study aimed to analyze cancer preventive property of quercetin in ascite cells of Dalton's lymphoma-bearing mice...
January 20, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#11
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106794/a-thoroughly-validated-virtual-screening-strategy-for-discovery-of-novel-hdac3-inhibitors
#12
Huabin Hu, Jie Xia, Dongmei Wang, Xiang Simon Wang, Song Wu
Histone deacetylase 3 (HDAC3) has been recently identified as a potential target for the treatment of cancer and other diseases, such as chronic inflammation, neurodegenerative diseases, and diabetes. Virtual screening (VS) is currently a routine technique for hit identification, but its success depends on rational development of VS strategies. To facilitate this process, we applied our previously released benchmarking dataset, i.e., MUBD-HDAC3 to the evaluation of structure-based VS (SBVS) and ligand-based VS (LBVS) combinatorial approaches...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106752/the-promoting-effect-of-the-extracellular-matrix-peptide-tniiia2-derived-from-tenascin-c-in-colon-cancer-cell-infiltration
#13
Hideo Suzuki, Manabu Sasada, Sadahiro Kamiya, Yuka Ito, Hikaru Watanabe, Yuko Okada, Kazuma Ishibashi, Takuya Iyoda, Akinori Yanaka, Fumio Fukai
The extracellular matrix (ECM) molecule tenascin C (TNC) is known to be highly expressed under various pathological conditions such as inflammation and cancer. It has been reported that the expression of TNC is correlated with the malignant potential of cancer. In our laboratory, it was found that the peptide derived from the alternative splicing domain A2 in TNC, termed TNIIIA2, has been shown to influence a variety of cellular processes, such as survival, proliferation, migration, and differentiation. In this study, we investigated the effect of TNC/TNIIIA2 on the invasion and metastasis of colon cancer cells, Colon26-M3...
January 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106477/thymosin-alpha-1-and-hiv-1-recent-advances-and-future-perspectives
#14
Claudia Matteucci, Sandro Grelli, Emanuela Balestrieri, Antonella Minutolo, Ayele Argaw-Denboba, Beatrice Macchi, Paola Sinibaldi-Vallebona, Carlo Federico Perno, Antonio Mastino, Enrico Garaci
In spite of the consistent benefits for HIV-1 infected patients undergoing antiretroviral therapy, a complete immune reconstitution is usually not achieved. Actually, antiretroviral therapy may be frequently accompanied by immunological unresponsiveness, persistent inflammatory conditions and inefficient cytotoxic T-cell response. Thymosin alpha 1 is a thymic peptide that demonstrates a peculiar ability to restore immune system homeostasis in different physiological and pathological conditions (i.e., infections, cancer, immunodeficiency, vaccination and aging) acting as multitasking protein depending on the host state of inflammation or immune dysfunction...
January 20, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28106049/food-grade-tio2-impairs-intestinal-and-systemic-immune-homeostasis-initiates-preneoplastic-lesions-and-promotes-aberrant-crypt-development-in-the-rat-colon
#15
Sarah Bettini, Elisa Boutet-Robinet, Christel Cartier, Christine Coméra, Eric Gaultier, Jacques Dupuy, Nathalie Naud, Sylviane Taché, Patrick Grysan, Solenn Reguer, Nathalie Thieriet, Matthieu Réfrégiers, Dominique Thiaudière, Jean-Pierre Cravedi, Marie Carrière, Jean-Nicolas Audinot, Fabrice H Pierre, Laurence Guzylack-Piriou, Eric Houdeau
Food-grade titanium dioxide (TiO2) containing a nanoscale particle fraction (TiO2-NPs) is approved as a white pigment (E171 in Europe) in common foodstuffs, including confectionary. There are growing concerns that daily oral TiO2-NP intake is associated with an increased risk of chronic intestinal inflammation and carcinogenesis. In rats orally exposed for one week to E171 at human relevant levels, titanium was detected in the immune cells of Peyer's patches (PP) as observed with the TiO2-NP model NM-105. Dendritic cell frequency increased in PP regardless of the TiO2 treatment, while regulatory T cells involved in dampening inflammatory responses decreased with E171 only, an effect still observed after 100 days of treatment...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105582/-control-of-opisthorchis-viverrini-infection-for-cholangiocarcinoma-prevention
#16
Y Buisson
The International Agency for Research on Cancer (IARC) has classified two liver flukes as carcinogenic to humans (Group 1): Opisthorchis viverrini in 1994 and Clonorchis sinensis in 2009. This review is focused on O. viverrini, the most studied of these two trematodes, which infects nearly 10 million people in Southeast Asia. The life cycle involves two intermediate hosts living in fresh water: a snail of the genus Bithynia and a ciprinid fish. The definitive hosts (human, cat, dog) become infected by ingesting raw fish containing metacercariae, the infective stage of the parasite...
January 19, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28105371/unfolding-anti-tumor-immunity-er-stress-responses-sculpt-tolerogenic-myeloid-cells-in-cancer
#17
REVIEW
Juan R Cubillos-Ruiz, Eslam Mohamed, Paulo C Rodriguez
Established tumors build a stressful and hostile microenvironment that blocks the development of protective innate and adaptive immune responses. Different subsets of immunoregulatory myeloid populations, including dendritic cells, myeloid-derived suppressor cells (MDSCs) and macrophages, accumulate in the stressed tumor milieu and represent a major impediment to the success of various forms of cancer immunotherapy. Specific conditions and factors within tumor masses, including hypoxia, nutrient starvation, low pH, and increased levels of free radicals, provoke a state of "endoplasmic reticulum (ER) stress" in both malignant cells and infiltrating myeloid cells...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28105341/changes-in-blood-concentrations-of-trace-metals-in-cancer-patients-receiving-cisplatin-based-chemotherapy
#18
Tsutomu Nakamura, Minoru Takahashi, Riho Niigata, Kazuhiko Yamashita, Manabu Kume, Midori Hirai, Hiroyuki Yasui
The administration of cisplatin (CDDP) may influence trace metal concentrations in body fluids. In order to test this hypothesis, the blood concentrations of trace metals were determined during the present study in eight Japanese esophageal and lung cancer patients receiving CDDP-based chemotherapy. The levels of manganese, iron (Fe), cobalt, copper, zinc (Zn), platinum and lead in the plasma were determined by inductively coupled plasma-mass spectrometry. In addition, the serum levels of Fe, transferrin and ferritin were evaluated...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28105240/transforming-growth-factor-%C3%AE-1-enhances-stemness-of-head-and-neck-squamous-cell-carcinoma-cells-through-activation-of-wnt-signaling
#19
Woo-Jin Bae, Sang-Hyuk Lee, Young-Soo Rho, Bon-Seok Koo, Young-Chang Lim
Transforming growth factor β (TGFβ) ligands, including TGFβ1, are multifunctional cytokines known as key regulators of cell growth, differentiation and inflammation. Dysregulated TGFβ signaling is common in numerous solid tumors, including head and neck squamous cell carcinoma (HNSCC). Previously, TGFβ ligands were also reported to be associated with an enhancement of stemness in glioma stem-like cells. However, their role in HNSCC cancer stem cells (CSCs) has not been explored. The present study demonstrated that TGFβ1 enriches the properties of HNSCC CSCs...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105184/il-1%C3%AE-promotes-proliferation-and-migration-of-gallbladder-cancer-cells-via-twist-activation
#20
Runsheng Guo, Yiyu Qin, Peidong Shi, Jinbi Xie, Ming Chou, Yueyu Chen
Increasing evidence has revealed a correlation between chronic inflammation and gallbladder cancer (GBC). However, the underlying molecular mechanisms remain to be elucidated. In the present study, secretion of interleukin (IL)-1β was examined in tissues of GBC, chronic cholecystitis and normal gallbladder, as well as in the supernatant of GBC-SD, SGC996 and HIBEpiC cells. The effect of IL-1β on the proliferation and migration of GBC cell lines was also evaluated. In addition, the role of Twist in IL-1β-induced proliferation of GBC cells was also studied...
December 2016: Oncology Letters
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