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694 results on '"Heneberg, Petr"'

36. Designing a broad-spectrum integrative approach for cancer prevention and treatment

Author

Block, Keith I, Gyllenhaal, Charlotte, Lowe, Leroy, Amedei, Amedeo, Amin, ARM Ruhul, Amin, Amr, Aquilano, Katia, Arbiser, Jack, Arreola, Alexandra, Arzumanyan, Alla, Ashraf, S Salman, Azmi, Asfar S, Benencia, Fabian, Bhakta, Dipita, Bilsland, Alan, Bishayee, Anupam, Blain, Stacy W, Block, Penny B, Boosani, Chandra S, Carey, Thomas E, Carnero, Amancio, Carotenuto, Marianeve, Casey, Stephanie C, Chakrabarti, Mrinmay, Chaturvedi, Rupesh, Chen, Georgia Zhuo, Chen, Helen, Chen, Sophie, Chen, Yi Charlie, Choi, Beom K, Ciriolo, Maria Rosa, Coley, Helen M, Collins, Andrew R, Connell, Marisa, Crawford, Sarah, Curran, Colleen S, Dabrosin, Charlotta, Damia, Giovanna, Dasgupta, Santanu, DeBerardinis, Ralph J, Decker, William K, Dhawan, Punita, Diehl, Anna Mae E, Dong, Jin-Tang, Dou, Q Ping, Drew, Janice E, Elkord, Eyad, El-Rayes, Bassel, Feitelson, Mark A, Felsher, Dean W, Ferguson, Lynnette R, Fimognari, Carmela, Firestone, Gary L, Frezza, Christian, Fujii, Hiromasa, Fuster, Mark M, Generali, Daniele, Georgakilas, Alexandros G, Gieseler, Frank, Gilbertson, Michael, Green, Michelle F, Grue, Brendan, Guha, Gunjan, Halicka, Dorota, Helferich, William G, Heneberg, Petr, Hentosh, Patricia, Hirschey, Matthew D, Hofseth, Lorne J, Holcombe, Randall F, Honoki, Kanya, Hsu, Hsue-Yin, Huang, Gloria S, Jensen, Lasse D, Jiang, Wen G, Jones, Lee W, Karpowicz, Phillip A, Keith, W Nicol, Kerkar, Sid P, Khan, Gazala N, Khatami, Mahin, Ko, Young H, Kucuk, Omer, Kulathinal, Rob J, Kumar, Nagi B, Kwon, Byoung S, Le, Anne, Lea, Michael A, Lee, Ho-Young, Lichtor, Terry, Lin, Liang-Tzung, Locasale, Jason W, Lokeshwar, Bal L, Longo, Valter D, Lyssiotis, Costas A, MacKenzie, Karen L, Malhotra, Meenakshi, Marino, Maria, Martinez-Chantar, Maria L, and Matheu, Ander

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Cancer, Rare Diseases, Precision Medicine, Aetiology, 5.1 Pharmaceuticals, Development of treatments and therapeutic interventions, 2.1 Biological and endogenous factors, Good Health and Well Being, Antineoplastic Agents, Phytogenic, Drug Resistance, Neoplasm, Genetic Heterogeneity, Humans, Molecular Targeted Therapy, Neoplasms, Signal Transduction, Tumor Microenvironment, Multi-targeted, Cancer hallmarks, Phytochemicals, Targeted therapy, Integrative medicine, Oncology & Carcinogenesis, Biochemistry and cell biology, Oncology and carcinogenesis
Abstract

Targeted therapies and the consequent adoption of "personalized" oncology have achieved notable successes in some cancers; however, significant problems remain with this approach. Many targeted therapies are highly toxic, costs are extremely high, and most patients experience relapse after a few disease-free months. Relapses arise from genetic heterogeneity in tumors, which harbor therapy-resistant immortalized cells that have adopted alternate and compensatory pathways (i.e., pathways that are not reliant upon the same mechanisms as those which have been targeted). To address these limitations, an international task force of 180 scientists was assembled to explore the concept of a low-toxicity "broad-spectrum" therapeutic approach that could simultaneously target many key pathways and mechanisms. Using cancer hallmark phenotypes and the tumor microenvironment to account for the various aspects of relevant cancer biology, interdisciplinary teams reviewed each hallmark area and nominated a wide range of high-priority targets (74 in total) that could be modified to improve patient outcomes. For these targets, corresponding low-toxicity therapeutic approaches were then suggested, many of which were phytochemicals. Proposed actions on each target and all of the approaches were further reviewed for known effects on other hallmark areas and the tumor microenvironment. Potential contrary or procarcinogenic effects were found for 3.9% of the relationships between targets and hallmarks, and mixed evidence of complementary and contrary relationships was found for 7.1%. Approximately 67% of the relationships revealed potentially complementary effects, and the remainder had no known relationship. Among the approaches, 1.1% had contrary, 2.8% had mixed and 62.1% had complementary relationships. These results suggest that a broad-spectrum approach should be feasible from a safety standpoint. This novel approach has potential to be relatively inexpensive, it should help us address stages and types of cancer that lack conventional treatment, and it may reduce relapse risks. A proposed agenda for future research is offered.

Published
2015

41. The effect of environmental chemicals on the tumor microenvironment

Author

Casey, Stephanie C, Vaccari, Monica, Al-Mulla, Fahd, Al-Temaimi, Rabeah, Amedei, Amedeo, Barcellos-Hoff, Mary Helen, Brown, Dustin G, Chapellier, Marion, Christopher, Joseph, Curran, Colleen S, Forte, Stefano, Hamid, Roslida A, Heneberg, Petr, Koch, Daniel C, Krishnakumar, PK, Laconi, Ezio, Maguer-Satta, Veronique, Marongiu, Fabio, Memeo, Lorenzo, Mondello, Chiara, Raju, Jayadev, Roman, Jesse, Roy, Rabindra, Ryan, Elizabeth P, Ryeom, Sandra, Salem, Hosni K, Scovassi, A Ivana, Singh, Neetu, Soucek, Laura, Vermeulen, Louis, Whitfield, Jonathan R, Woodrick, Jordan, Colacci, Annamaria, Bisson, William H, and Felsher, Dean W

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Immunology, Stem Cell Research, Cancer, Prevention, 2.2 Factors relating to the physical environment, Aetiology, 2.1 Biological and endogenous factors, Animals, Carcinogenesis, Environmental Exposure, Hazardous Substances, Humans, Neoplasms, Tumor Microenvironment, Oncology & Carcinogenesis, Oncology and carcinogenesis
Abstract

Potentially carcinogenic compounds may cause cancer through direct DNA damage or through indirect cellular or physiological effects. To study possible carcinogens, the fields of endocrinology, genetics, epigenetics, medicine, environmental health, toxicology, pharmacology and oncology must be considered. Disruptive chemicals may also contribute to multiple stages of tumor development through effects on the tumor microenvironment. In turn, the tumor microenvironment consists of a complex interaction among blood vessels that feed the tumor, the extracellular matrix that provides structural and biochemical support, signaling molecules that send messages and soluble factors such as cytokines. The tumor microenvironment also consists of many host cellular effectors including multipotent stromal cells/mesenchymal stem cells, fibroblasts, endothelial cell precursors, antigen-presenting cells, lymphocytes and innate immune cells. Carcinogens can influence the tumor microenvironment through effects on epithelial cells, the most common origin of cancer, as well as on stromal cells, extracellular matrix components and immune cells. Here, we review how environmental exposures can perturb the tumor microenvironment. We suggest a role for disrupting chemicals such as nickel chloride, Bisphenol A, butyltins, methylmercury and paraquat as well as more traditional carcinogens, such as radiation, and pharmaceuticals, such as diabetes medications, in the disruption of the tumor microenvironment. Further studies interrogating the role of chemicals and their mixtures in dose-dependent effects on the tumor microenvironment could have important general mechanistic implications for the etiology and prevention of tumorigenesis.

Published
2015

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