Microbiota modification in hematology: still at the bench or ready for the bedside?

Microbiota modification in hematology: still at the bench or ready for the bedside? Hematology Am Soc Hematol Educ Program. 2019 Dec 06;2019(1):303-314 Authors: Severyn CJ, Brewster R, Andermann TM Abstract Growing evidence suggests that human microbiota likely influence diverse processes including hematopoiesis, chemotherapy metabolism, and efficacy, as well as overall survival in patients with hematologic malignancies and other cancers. Both host genetic susceptibility and host-microbiota interactions may impact cancer risk and response to treatment; however, microbiota have the potential to be uniquely modifiable and accessible targets for treatment. Here, we focus on strategies to modify microbiota composition and function in patients with cancer. First, we evaluate the use of fecal microbiota transplant to restore microbial equilibrium following perturbation by antibiotics and chemotherapy, and as a treatment of complications of hematopoietic stem cell transplantation (HSCT), such as graft-versus-host disease and colonization with multidrug-resistant organisms. We then address the potential use of both probiotics and dietary prebiotic compounds in targeted modulation of the microbiota intended to improve outcomes in hematologic diseases. With each type of therapy, we highlight the role that abnormal, or dysbiotic, microbiota play in disease, treatment efficacy, and toxicity and evaluate their potential promise as emerging strategies for microbiota ma...
Source: Hematology ASH Education Program - Category: Hematology Tags: Hematology Am Soc Hematol Educ Program Source Type: research

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Molecules, Vol. 25, Pages 537: Overcoming Resistance to Platinum-Based Drugs in Ovarian Cancer by Salinomycin and Its Derivatives—An In Vitro Study Molecules doi: 10.3390/molecules25030537 Authors: Michalak Lach Antoszczak Huczyński Suchorska Polyether ionophore salinomycin (SAL) and its semi-synthetic derivatives are recognized as very promising anticancer drug candidates due to their activity against various types of cancer cells, including multidrug-resistant populations. Ovarian cancer is the deadliest among gynecologic malignancies, which is connected with the development of chemoresistant ...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
Publication date: Available online 23 January 2020Source: Pharmacological ResearchAuthor(s): Su-Wei Xu, Betty Yuen Kwan Law, Steven Li Qun Qu, Sami Hamdoun, Juan Chen, Wei Zhang, Jian-Ru Guo, An-Guo Wu, Simon Wing Fai Mok, David Wei Zhang, Chenglai Xia, Yoshikazu Sugimoto, Thomas Efferth, Liang Liu, Vincent Kam Wai WongAbstractMultidrug resistance (MDR) represents an obstacle in anti-cancer therapy. MDR is caused by multiple mechanisms, involving ATP-binding cassette (ABC) transporters such as P-glycoprotein (P-gp), which reduces intracellular drug levels to sub-therapeutic concentrations. Therefore, sensitizing agents ret...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
CONCLUSIONS Our findings suggest that Trop2 promotes the resistance of gastric cancer to chemotherapy by activating the Notch1 pathway. PMID: 31964857 [PubMed - in process]
Source: Medical Science Monitor - Category: Research Tags: Med Sci Monit Source Type: research
Publication date: Available online 22 January 2020Source: PeptidesAuthor(s): Anshul Panjeta, Simran PreetAbstractThe escalating predicament of multidrug resistant cancer cells and associated side effects of conventional chemotherapy necessitates the exploration of alternative anticancer therapies. The present study evaluated anticancer therapeutic potential of human defensin 5 (HD-5) against colon cancer. The in vivo anticancer efficacy of HD-5 against 1,2-dimethylhydrazine (DMH) induced colon cancer was elucidated in terms of tumor biostatistics, number of aberrant crypt foci (ACF), in situ apoptosis assay,changes in morp...
Source: Peptides - Category: Biochemistry Source Type: research
Reversal of P‑Glycoprotein-Mediated Multidrug Resistance by Novel Curcumin Analogues in Paclitaxel-resistant Human Breast Cancer Cells. Biochem Cell Biol. 2020 Jan 22;: Authors: Gao L, Zhao P, Li Y, Yang D, Hu P, Li L, Cheng Y, Yao H Abstract Multidrug resistance (MDR) is a major obstacle for successful cancer chemotherapy and the main cause of MDR has been attributed to P-glycoprotein (P-gp) overexpression. In the present study, four P-gp modulators (E,E)-4,6-bis(styryl)-2-(substituted amino)-pyrimidines were evaluated for their activity in a P-gp overexpressed breast cancer cell line LCC6MDR. The ...
Source: Biochemistry and Cell Biology - Category: Biochemistry Authors: Tags: Biochem Cell Biol Source Type: research
Abstract Pevonedistat is a potent, selective, first-in-class NEDD8 activating enzyme inhibitor. It is now under multiple clinical trials that investigate its anticancer effect against solid tumors and leukemia. ATP-binding cassette (ABC) transporters are membrane proteins that are involved in mediating multidrug resistance (MDR). In this article, we reveal that pevonedistat is a substrate of ABCG2 which decreases the therapeutic effect of pevonedistat. The cytotoxicity of pevonedistat was significantly weakened in ABCG2-overexpressing cells, and the drug resistance can be reversed by ABCG2 inhibitors. The ATPase a...
Source: Experimental Cell Research - Category: Cytology Authors: Tags: Exp Cell Res Source Type: research
This study provides strong evidence that following a healthy lifestyle can substantially extend the years a person lives disease-free." Commentary on Recent Evidence for Cognitive Decline to Precede Amyloid Aggregation in Alzheimer's Disease https://www.fightaging.org/archives/2020/01/commentary-on-recent-evidence-for-cognitive-decline-to-precede-amyloid-aggregation-in-alzheimers-disease/ I can't say that I think the data presented in the research noted here merits quite the degree of the attention that it has been given in the popular science press. It is interesting, but not compelling if its role...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Abstract Fibroblast growth factor receptor-like 1 (FGFRL1), a member of the FGFR family, has been demonstrated to play important roles in various cancers. However, the role of FGFRL1 in small-cell lung cancer (SCLC) remains unclear. Our study aimed to investigate the role of FGFRL1 in chemoresistance of SCLC and elucidate the possible molecular mechanism. We found that FGFRL1 levels are significantly up-regulated in multidrug-resistant SCLC cells (H69AR and H446DDP) compared with the sensitive parental cells (H69 and H446). In addition, clinical samples showed that FGFRL1 was overexpressed in SCLC tissues, and hig...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
ConclusionLAMA4 was up-regulated by AR through directly binding to its specific promoter region, and was associated with the enhanced cisplatin resistance in GC, which provided new mechanism and better understandings for treating drug-resistant GC.
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
PI3K/AKT is a vital signaling pathway in humans. Recently, several PI3K/AKT inhibitors were reported to have the ability to reverse cancer multidrug resistance (MDR); however, specific targets in the PI3K/AKT ...
Source: Molecular Cancer - Category: Cancer & Oncology Authors: Tags: Research Source Type: research
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