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https://www.readbyqxmd.com/read/28324583/revisiting-cdk-inhibitors-for-treatment-of-glioblastoma-multiforme
#1
REVIEW
Dorota Lubanska, Lisa Porter
Despite extensive efforts and continual progress in research and medicine, outcomes for patients with high-grade glioma remain exceptionally poor. Over the past decade, research has revealed a great deal about the complex biology behind glioma development, and has brought to light some of the major barriers preventing successful treatment. Glioblastoma multiforme (GBM) (stage 4 astrocytoma) is a highly dynamic tumour and one of the most extreme examples of intratumoural heterogeneity, making targeting with specific therapeutics an inefficient and highly unpredictable goal...
March 21, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28319779/supramolecular-biofunctional-materials
#2
REVIEW
Jie Zhou, Jie Li, Xuewen Du, Bing Xu
This review discusses supramolecular biofunctional materials, a novel class of biomaterials formed by small molecules that are held together via noncovalent interactions. The complexity of biology and relevant biomedical problems not only inspire, but also demand effective molecular design for functional materials. Supramolecular biofunctional materials offer (almost) unlimited possibilities and opportunities to address challenging biomedical problems. Rational molecular design of supramolecular biofunctional materials exploit powerful and versatile noncovalent interactions, which offer many advantages, such as responsiveness, reversibility, tunability, biomimicry, modularity, predictability, and, most importantly, adaptiveness...
March 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28319094/targeting-c-fos-and-dusp1-abrogates-intrinsic-resistance-to-tyrosine-kinase-inhibitor-therapy-in-bcr-abl-induced-leukemia
#3
Meenu Kesarwani, Zachary Kincaid, Ahmed Gomaa, Erika Huber, Sara Rohrabaugh, Zain Siddiqui, Muhammad F Bouso, Tahir Latif, Ming Xu, Kakajan Komurov, James C Mulloy, Jose A Cancelas, H Leighton Grimes, Mohammad Azam
Tyrosine-kinase inhibitor (TKI) therapy for human cancers is not curative, and relapse occurs owing to the continued presence of tumor cells, referred to as minimal residual disease (MRD). The survival of MRD stem or progenitor cells in the absence of oncogenic kinase signaling, a phenomenon referred to as intrinsic resistance, depends on diverse growth factors. Here we report that oncogenic kinase and growth-factor signaling converge to induce the expression of the signaling proteins FBJ osteosarcoma oncogene (c-FOS, encoded by Fos) and dual-specificity phosphatase 1 (DUSP1)...
March 20, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28318212/multiple-myeloma-diagnosis-and-treatment
#4
Thomas C Michels, Keith E Petersen
Multiple myeloma accounts for 1.6% of all cancer cases and approximately 10% of hematologic malignancies in the United States. In 2015, an estimated 28,850 new cases of multiple myeloma were diagnosed in the United States, and the disease caused more than 11,000 deaths. Patients older than 65 years account for 85% of those diagnosed with multiple myeloma, and there is a twofold increased incidence in blacks compared with whites. Patients may present with bone pain or with symptoms that are often nonspecific, such as nausea, vomiting, malaise, weakness, recurrent infections, and weight loss...
March 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28317871/insights-into-molecular-therapy-of-glioma-current-challenges-and-next-generation-blueprint
#5
REVIEW
Y Rajesh, Ipsita Pal, Payel Banik, Sandipan Chakraborty, Sachin A Borkar, Goutam Dey, Ahona Mukherjee, Mahitosh Mandal
Glioma accounts for the majority of human brain tumors. With prevailing treatment regimens, the patients have poor survival rates. In spite of current development in mainstream glioma therapy, a cure for glioma appears to be out of reach. The infiltrative nature of glioma and acquired resistance substancially restrict the therapeutic options. Better elucidation of the complicated pathobiology of glioma and proteogenomic characterization might eventually open novel avenues for the design of more sophisticated and effective combination regimens...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28316922/miracle-cells-for-natural-dentistry-a-review
#6
REVIEW
Rani Somani, Shipra Jaidka, Neeti Bajaj, Sameksha Arora
Stem cells are undifferentiated cells that can differentiate into specialized cells. Recently, enormous growth has been seen in the recognition of stem cell-based therapies, which have the potential to ameliorate the life of patients with conditions that span from Parkinson's disease to cardiac ischemia to bone or tooth loss. This research has produced new but unexplored possibilities in the regeneration of different organs and tissues. Presently, research is focused on the proficiency of stem cells and their utilization in dentistry, which is gaining interest...
January 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28315704/interleukin-6-and-prostate-cancer-current-developments-and-unsolved-questions
#7
Zoran Culig, Martin Puhr
Interleukin (IL)-6 is a pro-inflammatory cytokine that is expressed in prostate tumors and in the stromal tumor micro-enviroment. It is known to regulate proliferation, apoptosis, angiogenesis, and differentiation. The signaling pathway of Janus kinase and signal transducer and activator of transcription (STAT)3, which is activated by IL-6, is in the focus of scientific investigations for improved treatment approaches. Different effects of IL-6 and/or STAT3 on tumor cell growth have been observed in human and murine prostate cancer (PCa) models...
March 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28315070/mechanisms-of-resistance-in-multiple-myeloma
#8
Athanasios Papadas, Fotis Asimakopoulos
Multiple myeloma (MM) is an incurable hematopoietic cancer that is characterized by malignant plasma cell infiltration of the bone marrow and/or extramedullary sites. Multi-modality approaches including "novel agents," traditional chemotherapy, and/or stem cell transplantation are used in MM therapy. Drug resistance, however, ultimately develops and the disease remains incurable for the vast majority of patients. In this chapter, we review both tumor cell-autonomous and non-autonomous (microenvironment-dependent) mechanisms of drug resistance...
March 18, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28302679/disrupting-androgen-receptor-signaling-induces-snail-mediated-epithelial-mesenchymal-plasticity-in-prostate-cancer
#9
Lu Miao, Lin Yang, Rui Li, Daniel Nava Rodrigues, Mateus Crespo, Jer-Tsong Hsieh, Wayne D Tilley, Johann S de Bono, Luke A Selth, Ganesh V Raj
Epithelial to mesenchymal plasticity (EMP) has been linked to metastasis, stemness, and drug resistance. In prostate cancer (PCa), EMP has been associated with both suppression and activation of androgen receptor (AR) signaling. Here we investigated the effect of the potent AR antagonist enzalutamide on EMP in multiple preclinical models of PCa and patient tissues. Enzalutamide treatment significantly enhanced the expression of EMP drivers (ZEB1, ZEB2, Snail, Twist, and FOXC2) and mesenchymal markers (N-cadherin, fibronectin, and vimentin) in PCa cells, enhanced PCa cell migration, and induced PCa transformation to a spindle, fibroblast-like morphology...
March 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28302035/translational-multimodality-neuroimaging
#10
Sushil K Sharma
Recently high-resolution, noninvasive, multimodality in-vivo molecular imaging with PET, SPECT, CT and MRI, employing fusion algorithms has revolutionized personalized medicine. However, specific radiopharmaceuticals (RPs) for the accurate diagnosis and effective treatment of progressive neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, drug addiction, and other cognitive impairments still remain in developmental phase. Currently, multimodality fusion neuroimaging is utilized for the determination of: pharmacokinetics and pre-clinical development of radiopharmaceuticals (RPs); in-vivo monitoring of stem cell transplantation therapy; nicotinic acetylcholine receptors (nAChRs) investigations; and regional cerebral blood flow and glucose metabolism in cognitively-impaired subjects employing noninvasive microPET and nano-SPECT imaging...
March 15, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28301871/a-unified-model-of-the-hierarchical-and-stochastic-theories-of-gastric-cancer
#11
REVIEW
Yanjing Song, Yao Wang, Chuan Tong, Hongqing Xi, Xudong Zhao, Yi Wang, Lin Chen
Gastric cancer (GC) is a life-threatening disease worldwide. Despite remarkable advances in treatments for GC, it is still fatal to many patients due to cancer progression, recurrence and metastasis. Regarding the development of novel therapeutic techniques, many studies have focused on the biological mechanisms that initiate tumours and cause treatment resistance. Tumours have traditionally been considered to result from somatic mutations, either via clonal evolution or through a stochastic model. However, emerging evidence has characterised tumours using a hierarchical organisational structure, with cancer stem cells (CSCs) at the apex...
March 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28301379/hypothesis-robophera-a-phosphatase-and-tensin-homolog-targeted-antineoplastic-therapy
#12
Arsalan Azimi, Arian Azimi
Phosphatase and tensin homolog (PTEN) is a protein that regulates cellular response to growth/antigrowth signals, cell survival, apoptosis, proliferation, angiogenesis, and cellular migration. Impairments in these processes are the main hallmarks of cancer, and reduced expression, activity, or stability of PTEN are among the most common etiologies of diverse types of sporadic cancers. Rosiglitazone (RO), bortezomib (BO), phosphatidylserine (PH), ethanol (E), and radiotherapy (RA) (ROBOPHERA) stimulate the expression and increase the activity of PTEN...
April 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28300827/simvastatin-and-atorvastatin-inhibit-dna-replication-licensing-factor-mcm7-and-effectively-suppress-rb-deficient-tumors-growth
#13
Juan Li, Jie Liu, Zheyong Liang, Fang He, Lu Yang, Pingping Li, Yina Jiang, Bo Wang, Can Zhou, Yaochun Wang, Yu Ren, Jin Yang, Jianmin Zhang, Zhijun Luo, Cyrus Vaziri, Peijun Liu
Loss or dysfunction of tumor suppressor retinoblastoma (RB) is a common feature in various tumors, and contributes to cancer cell stemness and drug resistance to cancer therapy. However, the strategy to suppress or eliminate Rb-deficient tumor cells remains unclear. In the present study, we accidentally found that reduction of DNA replication licensing factor MCM7 induced more apoptosis in RB-deficient tumor cells than in control tumor cells. Moreover, after a drug screening and further studies, we demonstrated that statin drug Simvastatin and Atorvastatin were able to inhibit MCM7 and RB expressions...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28299476/a-comparison-of-the-molecular-subtypes-of-triple-negative-breast-cancer-among-non-asian-and-taiwanese-women
#14
Ling-Ming Tseng, Jen-Hwey Chiu, Chun-Yu Liu, Yi-Fang Tsai, Yun-Lin Wang, Chu-Wen Yang, Yi-Ming Shyr
BACKGROUND: "Precision medicine" is a concept that by utilizing modern molecular diagnostics, an effective therapy is accurately applied for each cancer patient to improve their survival rates. The treatment of triple-negative breast cancer (TNBC) remains a challenging issue. The aim of this study was to compare the molecular subtypes of triple-negative breast cancer (TNBC) between Taiwanese and Non-Asian women. METHODS: GEO Datasets for non-Asian (12 groups, n = 1450) and Taiwanese (3 groups, n = 465) breast cancer, including 617 TNBC, were acquired, normalized and cluster analyzed...
March 15, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28298340/pre-clinical-validation-of-a-selective-anti-cancer-stem-cell-therapy-for-numb-deficient-human-breast-cancers
#15
Daniela Tosoni, Sarah Pambianco, Blanche Ekalle Soppo, Silvia Zecchini, Giovanni Bertalot, Giancarlo Pruneri, Giuseppe Viale, Pier Paolo Di Fiore, Salvatore Pece
The cell fate determinant Numb is frequently downregulated in human breast cancers (BCs), resulting in p53 inactivation and an aggressive disease course. In the mouse mammary gland, Numb/p53 downregulation leads to aberrant tissue morphogenesis, expansion of the stem cell compartment, and emergence of cancer stem cells (CSCs). Strikingly, CSC phenotypes in a Numb-knockout mouse model can be reverted by Numb/p53 restoration. Thus, targeting Numb/p53 dysfunction in Numb-deficient human BCs could represent a novel anti-CSC therapy...
March 15, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28297567/developing-a-novel-two-dimensional-culture-system-to-enrich-human-prostate-luminal-progenitors-that-can-function-as-a-cell-of-origin-for-prostate-cancer
#16
Dingxiao Zhang, Kevin Lin, Yue Lu, Kiera Rycaj, Yi Zhong, Hsueh-Ping Chao, Tammy Calhoun-Davis, Jianjun Shen, Dean G Tang
Elucidating the cell of origin of cancer has great significance in stratifying patients into appropriate treatment groups and for developing novel targeted therapies. Early studies demonstrate that only stem-like basal cells in the normal human prostate (NHP) can function as the cell of origin for prostate cancer (PCa). Here, we show that the organoids derived from bulk NHP luminal cells can also be tumorigenically transformed. We further show that the WIT medium, which is used to culture human mammary epithelial progenitor cells, when combined with the ROCK inhibitor, can readily propagate a population of progenitor-like cells from the primary NHP luminal cell isolates...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28296186/changes-in-periprostatic-adipose-tissue-induced-by-5%C3%AE-reductase-inhibitors
#17
D Taussky, M Barkati, S Campeau, K Zerouali, A Nadiri, F Saad, G Delouya
There is increasing interest in periprostatic fat and its influence on prostate cancer aggressiveness. In vitro data suggest that adipose stromal/stem cells (ASCs) can increase production of cytokines and growth factors resulting in invasive growth and metastasis in prostate cancer. The objective of the study was to determine the interaction between 5α-reductase inhibitors (5ARIs) and periprostatic adipose tissue (PPAT) and factors of prostate cancer aggressiveness. In this retrospective study, we identified 61 patients treated with 5ARIs for a period of ≥12 months before undergoing radiation therapy (brachytherapy or external beam radiotherapy)...
March 10, 2017: Andrology
https://www.readbyqxmd.com/read/28294393/the-new-msc-mscs-as-pericytes-are-sentinels-and-gatekeepers
#18
REVIEW
Arnold I Caplan
Human Mesenchymal Stem Cells, hMSCs, were first named over 25 years ago with the "stem cell" nomenclature derived from the fact that we and others could cause these cells to differentiate into a number of different mesodermal phenotypes in cell culture. The capacity to form skeletal tissue in vitro encouraged the use of hMSCs for the fabrication of tissue engineered skeletal repair tissue with subsequent transplantation to in vivo sites. With the current realization that MSCs are derived from perivascular cells, pericytes, and the immunomodulatory and trophic capabilities of MSCs in both in vitro and in vivo test systems, a complete re-evaluation of the role and functions of MSCs in the body was required...
March 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28292843/translational-applications-of-adult-stem-cell-derived-organoids
#19
REVIEW
Jarno Drost, Hans Clevers
Adult stem cells from a variety of organs can be expanded long-term in vitro as three-dimensional organotypic structures termed organoids. These adult stem cell-derived organoids retain their organ identity and remain genetically stable over long periods of time. The ability to grow organoids from patient-derived healthy and diseased tissue allows for the study of organ development, tissue homeostasis and disease. In this Review, we discuss the generation of adult stem cell-derived organoid cultures and their applications in in vitro disease modeling, personalized cancer therapy and regenerative medicine...
March 15, 2017: Development
https://www.readbyqxmd.com/read/28290053/targeting-cancer-stem-cells-by-using-chimeric-antigen-receptor-modified-t-cells-a-potential-and-curable-approach-for-cancer-treatment
#20
REVIEW
Yelei Guo, Kaichao Feng, Yao Wang, Weidong Han
Cancer stem cells (CSCs), a subpopulation of tumor cells, have self-renewal and multi-lineage differentiation abilities that play an important role in cancer initiation, maintenance, and metastasis. An accumulation of evidence indicates that CSCs can cause conventional therapy failure and cancer recurrence because of their treatment resistance and self-regeneration characteristics. Therefore, approaches that specifically and efficiently eliminate CSCs to achieve a durable clinical response are urgently needed...
March 13, 2017: Protein & Cell
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