Researchers Discover Link between Gut Bacteria and the Effectiveness of Certain Cancer Drugs; Knowledge May Lead to New Types of Clinical Laboratory Tests

Microbiome is once again leading scientists toward a new understanding of how human gut bacteria can impact the efficacy and side-effects of certain cancer therapies Anatomic pathology researchers already know that a person’s genetics can affect the results of cancer treatments. Now it is becoming clear that a patient’s microbiome—which includes gut bacteria—may also impact […]
Source: Dark Daily - Category: Laboratory Medicine Authors: Tags: Instruments & Equipment Laboratory Instruments & Laboratory Equipment Laboratory Management and Operations Laboratory News Laboratory Pathology Laboratory Testing Albert Einstein College of Medicine anatomic pathology beta-glucuronidase Source Type: news

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This study investigated the presence of Streptococci, Staphylococci, aerobic gram negative bacteria (AGNB), Candida and bacterial endotoxins in the oral cavities of patients receiving chemo- and/or radiotherapy for cancer.MethodsSamples of oral cavity rinse were collected from 100 patients on cancer treatment and 70 healthy individuals. Demographic and clinical data were recorded. Samples were cultured onto various agar plates for qualitative and quantitative analysis and tested for the presence of endotoxin. Results were analysed using the Mann-Whitney and chi-square tests.ResultsIn cancer patients, S. aureus counts were ...
Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
Overexpression of IQGAP1 promotes the angiogenesis of esophageal squamous cell carcinoma through the AKT and ERK‑mediated VEGF‑VEGFR2 signaling pathway. Oncol Rep. 2018 Jul 11;: Authors: Li CH, Sun XJ, Niu SS, Yang CY, Hao YP, Kou JT, Li XZ, Wang XX Abstract Angiogenesis is crucial for the progression of esophageal squamous cell carcinoma (ESCC). Anti‑angiogenesis by targeting important molecules has been considered as one of the most promising and efficient strategy for cancer therapy. Recent studies have demonstrated that the IQ‑domain GTPase activating protein 1 (IQGAP1) plays critical ...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research
Authors: Kalimuthu S, Zhu L, Oh JM, Gangadaran P, Lee HW, Baek SH, Rajendran RL, Gopal A, Jeong SY, Lee SW, Lee J, Ahn BC Abstract Mesenchymal stem cells (MSCs) show therapeutic effects in various types of diseases. MSCs have been shown to migrate towards inflamed or cancerous tissues, and visualized after sacrificing the animal. MSCs are able to deliver drugs to target cells, and are an ideal candidate for cancer therapy. The purpose of this study was to track the migration of MSCs in tumor-bearing mice; MSCs were also used as drug delivery vehicles. Human breast cancer cells (MDA-MB-231) and anaplastic thyroid ca...
Source: International Journal of Medical Sciences - Category: Biomedical Science Tags: Int J Med Sci Source Type: research
Publication date: Available online 17 July 2018Source: Colloids and Surfaces B: BiointerfacesAuthor(s): Duarte de Melo-Diogo, Rita Lima-Sousa, Cátia G. Alves, Elisabete C. Costa, Ricardo O. Louro, Ilídio J. CorreiaAbstractGraphene family nanomaterials’ (GFN) ability to interact with near-infrared light has propelled their application in cancer photothermal therapy. Furthermore, the graphitic lattice of GFN can adsorb different types of molecules, which has motivated their use in cancer drug delivery. However, the direct application of GFN in cancer therapy is severely hindered by their poor colloidal st...
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
This study identified a previously unrecognized regulatory axis between AHR and polyamine metabolism and discovered clofazimine as an inhibitor of AHR and a potentially clinically-relevant anti-multiple myeloma agent.RNA-seq: human multiple myeloma MM1S and human normal fibroblasts WI38 cells -/+ CLF 2-4uM for 24hrs; -/+ shAHR
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research
(Wiley) Previous research has shown that cannabinoids can help lessen side effects of anti-cancer therapies. Now a new British Journal of Pharmacology review has examined their potential for the direct treatment of cancer.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
Future Oncology, Ahead of Print.
Source: Future Oncology - Category: Cancer & Oncology Authors: Source Type: research
Future Oncology, Ahead of Print.
Source: Future Oncology - Category: Cancer & Oncology Authors: Source Type: research
Kinase inhibitor resistance constitutes a major unresolved clinical challenge in cancer. Furthermore, the role of serine/threonine phosphatase deregulation as a potential cause for resistance to kinase inhibitors has not been thoroughly addressed. We characterize protein phosphatase 2A (PP2A) activity as a global determinant of KRAS-mutant lung cancer cell resistance across a library of>200 kinase inhibitors. The results show that PP2A activity modulation alters cancer cell sensitivities to a large number of kinase inhibitors. Specifically, PP2A inhibition ablated mitogen-activated protein kinase kinase (MEK) inhibitor ...
Source: Science Translational Medicine - Category: Biomedical Science Authors: Tags: Research Articles Source Type: research
The overexpression of ABCB1 in cancer cells is a major factor contributing to the development of multidrug resistance (MDR) and treatment failure in cancer patients. Therefore, re-sensitization of MDR cancer cells to anticancer drugs remains an important aspect in chemotherapy. The progress in developing clinically applicable synthetic inhibitors of ABCB1 has been slow, mostly due to complications associated with intrinsic toxicities and unforeseen drug-drug interactions. Here, we explored the drug-repositioning approach for cancer therapy by targeting ABCB1-mediated MDR in human cancer cells.
Source: Cancer Letters - Category: Cancer & Oncology Authors: Tags: Original Articles Source Type: research
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