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Ticagrelor inhibits platelet-tumor cell interactions and metastasis in human and murine breast cancer.

We examined the potential of the reversible P2Y12 inhibitor ticagrelor, an agent used clinically to prevent cardiovascular and cerebrovascular events, to reduce tumor growth and metastasis. In vitro, MCF-7, MDA-MB-468, and MDA-MB-231 human mammary carcinoma cells exhibited decreased interaction with platelets treated with ticagrelor compared to untreated platelets. Prevention of tumor cell-platelet interactions through pretreatment of platelets with ticagrelor did not improve natural killer cell-mediated tumor cell killing of K562 myelogenous leukemia target cells. Additionally, ticagrelor had no effect on proliferation of 4T1 mouse mammary carcinoma cells co-cultured with platelets, or on primary 4T1 tumor growth. In an orthotopic 4T1 breast cancer model, ticagrelor (10 mg/kg), but not clopidogrel (10 mg/kg) or saline, resulted in reduced metastasis and improved survival. Ticagrelor treatment was associated with a marked reduction in tumor cell-platelet aggregates in the lungs at 10, 30 and 60 min post-intravenous inoculation. These findings suggest a role for P2Y12-mediated platelet activation in promoting metastasis, and provide support for the use of ticagrelor in the prevention of breast cancer spread. PMID: 29322294 [PubMed - as supplied by publisher]
Source: Clinical Breast Cancer - Category: Cancer & Oncology Authors: Tags: Clin Exp Metastasis Source Type: research

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Excerpted fromPrecision Medicine and the Reinvention of Human DiseaseDespite having the most advanced healthcare technology on the planet, life expectancy in the United States is not particularly high. Citizens from most of the European countries and the highly industrialized Asian countries enjoy longer life expectancies than the United States. According to the World Health Organization, the United States ranks 31st among nations, trailing behind Greece, Chile, and Costa Rica, and barely edging out Cuba [42]. Similar rankings are reported by the US Central Intelligence Agency [43]. These findings lead us to infer that acc...
Source: Specified Life - Category: Information Technology Tags: cancer cancer vaccines precision medicine prevention public health Source Type: blogs
CONCLUSION Cognitive impairment can affect daily functioning, quality of life, and capacity to work in patients with cancer and those in remission. Consequently, cognitive assessment is now an important and necessary part of a comprehensive oncological care plan. Cancer-related cognitive impairment might be due to the direct effects of the cancer itself, nonspecific factors, or comorbid conditions that are independent of the disease and/or due to the adverse effects of the treatment or combination of treatments given for the disease. The prevalence and extent of cognitive impairment associated with cancer is recognized but...
Source: Innovations in Clinical Neuroscience - Category: Neuroscience Authors: Tags: Cognition Current Issue Neuro oncology Neurology Review cancer chemotherapy cognitive impairment neuropsychological assessment treatment Source Type: research
We examined the potential of the reversible P2Y12 inhibitor ticagrelor, an agent used clinically to prevent cardiovascular and cerebrovascular events, to reduce tumor growth and metastasis. In vitro, MCF-7, MDA-MB-468, and MDA-MB-231 human mammary carcinoma cells exhibited decreased interaction with platelets treated with ticagrelor compared to untreated platelets. Prevention of tumor cell –platelet interactions through pretreatment of platelets with ticagrelor did not improve natural killer cell-mediated tumor cell killing of K562 myelogenous leukemia target cells. Additionally, ticagrelor had no effect on prolifera...
Source: Clinical and Experimental Metastasis - Category: Cancer & Oncology Source Type: research
Purpose of review Germline pathogenic TP53 mutation may predispose to multiple cancers but penetrance and cancer patterns remain incompletely documented. We have analyzed international agency for research on cancer TP53 database to reevaluate age and variant-dependent tumor patterns. Recent findings Genome-wide studies suggest that germline variants are more frequent than estimated prevalence of Li–Fraumeni syndrome (LFS), suggesting that many carriers of potentially pathogenic mutations may not develop the syndrome. Carriers of a germline TP53 mutation who are detected in a clinical context have a penetrance of...
Source: Current Opinion in Oncology - Category: Cancer & Oncology Tags: CANCER BIOLOGY: Edited by Pierre Hainaut Source Type: research
Abstract The proto-oncogene Myc serves as a paradigm for understanding the dynamics of transcriptional regulation. Myc protein has been linked to immune dysfunction, cancer development and neoplastic transformation. We review recent research regarding functions of Myc as an important modulator in immune disorders, postallogeneic hematopoietic stem cell transplantation (HSCT) and several cancers. Myc overexpression has been repeatedly linked to immune disorders and specific cancers, such as myasthenia gravis, psoriasis, pemphigus vulgaris, atherosclerosis, long-term allogeneic survival among HSCT patients, (primary...
Source: The American Journal of the Medical Sciences - Category: General Medicine Authors: Tags: Am J Med Sci Source Type: research
Purpose of review Germline pathogenic TP53 mutation may predispose to multiple cancers but penetrance and cancer patterns remain incompletely documented. We have analyzed international agency for research on cancer TP53 database to reevaluate age and variant-dependent tumor patterns. Recent findings Genome-wide studies suggest that germline variants are more frequent than estimated prevalence of Li–Fraumeni syndrome (LFS), suggesting that many carriers of potentially pathogenic mutations may not develop the syndrome. Carriers of a germline TP53 mutation who are detected in a clinical context have a penetrance of...
Source: Current Opinion in Oncology - Category: Cancer & Oncology Tags: CANCER BIOLOGY: Edited by Pierre Hainaut Source Type: research
Conclusion Smoking, infectious agents, and betel nut chewing appear to be important contributors to the burden of cancer in Guam. Earlier onset of cancer in Guam suggests earlier age of exposure to key risk factors and/or a more aggressive pathogenesis. Contrasting cancer patterns within Guam and between Guam and Hawaii underscore the potential influence of genes, lifestyle, and environmental factors on cancer development and progression.
Source: Cancer Epidemiology - Category: Cancer & Oncology Source Type: research
Abstract A novel series of coumarin‐thiadiazole heterocycle derivatives was synthesized by the nucleophilic substitution reaction. The synthesized compounds were structurally verified by IR, 1H NMR, 13C NMR, mass spectra, and elemental analyses. The antitumor activity of the synthesized compounds was evaluated through DNA binding assays and the 60‐cell line panel according to the US NCI‐DTP protocol or a selection of human tumor cell lines: breast cancer (MCF‐7), liver cancer (HepG‐2), and colorectal cancer (HCT‐116). Most of the compounds had better DNA/ethidium bromide fluorescence quenching rather than methy...
Source: Archiv der Pharmazie - Category: Drugs & Pharmacology Authors: Tags: FULL PAPER Source Type: research
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Source: Annals of Allergy, Asthma and Immunology - Category: Allergy & Immunology Authors: Source Type: research
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Source: European Surgery - Category: Surgery Source Type: research
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