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https://www.readbyqxmd.com/read/28806736/unravelling-the-interplay-of-sphingolipids-and-tgf-%C3%AE-signaling-in-the-human-corneal-stroma
#1
Sarah E Nicholas, Tyler G Rowsey, Shrestha Priyadarsini, Nawajes A Mandal, Dimitrios Karamichos
PURPOSE: To delineate the role of Sphingolipids (SPLs) in the human cornea and their cross-talks with transforming growth factor beta (TGF-β) in order to develop novel, non-invasive therapies. METHODS: Human corneal fibroblasts (HCFs) were harvested from healthy donors, stimulated with Vitamin C to promote extracellular matrix assembly, treated with exogenous sphingosine-1-phosphate (S1P) or sphingosine kinase inhibitor 2 (SPHK I2) and isolated after 4 weeks for further analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28803855/elucidating-the-functions-of-brain-gsk3%C3%AE-possible-synergy-with-gsk3%C3%AE-upregulation-and-reversal-by-antidepressant-treatment-in-a-mouse-model-of-depressive-like-behaviour
#2
Dmitri Pavlov, Nataliia Markova, Lucien Bettendorff, Vladimir Chekhonin, Igor Pomytkin, Viktoria Lioudyno, Andrei Svistunov, Eugene Ponomarev, Klaus-Peter Lesch, Tatyana Strekalova
Glycogen synthase kinase 3 (GSK3) has been linked to the mechanisms of stress, mood regulation, and the effects of antidepressants. The functions of the GSK3β isoform have been extensively investigated, but little is known about the α-isoform, although they may functionally related. In a recently established modified swim test with a third delayed swim exposure, brain GSK3β mRNA expression positively correlated with floating behavior on the third test. A two-week-long pretreatment regime with imipramine (7...
August 10, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28800335/an-overview-of-human-immunodeficiency-virus-type-1-associated-common-neurological-complications-does-aging-pose-a-challenge
#3
Anantha Ram Nookala, Joy Mitra, Nitish S Chaudhari, Muralidhar L Hegde, Anil Kumar
With increasing survival of patients infected with human immunodeficiency virus type 1 (HIV-1), the manifestation of heterogeneous neurological complications is also increasing alarmingly in these patients. Currently, more than 30% of about 40 million HIV-1 infected people worldwide develop central nervous system (CNS)-associated dysfunction, including dementia, sensory, and motor neuropathy. Furthermore, the highly effective antiretroviral therapy has been shown to increase the prevalence of mild cognitive functions while reducing other HIV-1-associated neurological complications...
August 9, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28772281/randomised-phase-2-study-of-maintenance-linsitinib-osi-906-in-combination-with-erlotinib-compared-with-placebo-plus-erlotinib-after-platinum-based-chemotherapy-in-patients-with-advanced-non-small-cell-lung-cancer
#4
Tudor-Eliade Ciuleanu, Samreen Ahmed, Joo-Hang Kim, Jörg Mezger, Keunchil Park, Michael Thomas, Jihong Chen, Srinivasu Poondru, Jan M VanTornout, Debbie Whitcomb, Fiona Blackhall
BACKGROUND: Maintenance therapy is important in advanced/metastatic non-small cell lung cancer (NSCLC). Erlotinib as switch maintenance following platinum-based chemotherapy increases survival. Cross-talk between the epidermal growth factor receptor and insulin-like growth factor receptor (IGFR) pathways mediate resistance to individual receptor blockade. This study compared maintenance linsitinib plus erlotinib vs erlotinib plus placebo in patients with NSCLC. METHODS: In this Phase II randomised trial, patients without progression following four cycles of first-line platinum-based chemotherapy (N=205) received continuous schedule maintenance oral linsitinib 150 mg or placebo BID combined with erlotinib 150 mg QD for 21-day cycles...
August 3, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28770210/extracellular-vesicles-tunneling-nanotubes-and-cellular-interplay-synergies-and-missing-links
#5
REVIEW
Muhammad Nawaz, Farah Fatima
The process of intercellular communication seems to have been a highly conserved evolutionary process. Higher eukaryotes use several means of intercellular communication to address both the changing physiological demands of the body and to fight against diseases. In recent years, there has been an increasing interest in understanding how cell-derived nanovesicles, known as extracellular vesicles (EVs), can function as normal paracrine mediators of intercellular communication, but can also elicit disease progression and may be used for innovative therapies...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28768681/death-talk-and-relief-of-death-related-distress-in-patients-with-advanced-cancer
#6
Ekaterina An, Erica Wennberg, Rinat Nissim, Christopher Lo, Sarah Hales, Gary Rodin
OBJECTIVES: The circumstances of advanced cancer heighten the need for affected individuals to communicate mortality-related concerns, although there may be obstacles to such communication. Managing Cancer and Living Meaningfully(CALM) is a supportive-expressive therapy designed to address such barriers and to facilitate communication of mortality-related concerns in patients and caregivers facing advanced disease. This study explores death-related distress in patients with advanced cancer and the perceived influence of CALM therapy on overcoming barriers to communication of this distress...
August 2, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28763371/proinflammatory-cytokines-mediate-gpcr-dysfunction
#7
Maradumane L Mohan, Neelakantan T Vasudevan, Sathyamangla V Naga Prasad
Proinflammatory reaction by the body occurs acutely in response to injury that is considered primarily beneficial. However, sustained proinflammatory cytokines observed with chronic pathologies such as metabolic syndrome, cancer, and arthritis are detrimental and in many cases is a major cardiovascular risk factor. Proinflammatory cytokines such as interleukin-1, interleukin-6, and tumor necrosis factor α (TNFα) have long been implicated in cardiovascular risk and considered to be a major underlying cause for heart failure (HF)...
August 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28750018/pancreatic-cancer-cell-fibroblast-co-culture-induces-m2-like-macrophages-that-influence-therapeutic-response-in-a-3d-model
#8
Janina Kuen, Diana Darowski, Tobias Kluge, Meher Majety
Pancreatic cancer (PC) remains one of the most challenging solid tumors to treat with a high unmet medical need as patients poorly respond to standard-of-care-therapies. Prominent desmoplastic reaction involving cancer-associated fibroblasts (CAFs) and the immune cells in the tumor microenvironment (TME) and their cross-talk play a significant role in tumor immune escape and progression. To identify the key cellular mechanisms induce an immunosuppressive tumor microenvironment, we established 3D co-culture model with pancreatic cancer cells, CAFs and monocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28743661/chronic-pain-patient-physician-engagement-and-family-communication-associated-with-drug-using-hiv-patients-discussing-advanced-care-planning-with-their-physicians
#9
Eric D Hansen, Mary M Mitchell, Tom Smith, Nancy Hutton, Jeanne Keruly, Amy R Knowlton
CONTEXT: In the era of effective antiretroviral therapy, persons living with HIV/AIDS (PLWHA) are living longer, transforming HIV into a serious chronic illness, warranting patient-provider discussion about advanced care planning (ACP). Evidence is needed to inform physicians on how to approach ACP for these patients. Chronic pain is common in PLWHA, particularly in those who have substance use disorders; although it is known this population is at risk for poorer patient-physician engagement, the effects on ACP are unknown...
July 22, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28735518/the-possible-prognostic-role-of-histone-deacetylase-and-transforming-growth-factor-%C3%AE-smad-signaling-in-high-grade-gliomas-treated-by-radio-chemotherapy-a-preliminary-immunohistochemical-study
#10
Roberta Sferra, Simona Pompili, Claudio Festuccia, Francesco Marampon, Giovanni L Gravina, Luca Ventura, Ernesto Di Cesare, Sara Cicchinelli, Eugenio Gaudio, Antonella Vetuschi
Glioblastoma (GBM) is the most common and aggressive tumor of the central nervous system. Unfortunately, patients affected by this disease have a very poor prognosis, due to high level of invasiveness and resistance to standard therapies. Although the molecular profile of GBM has been extensively investigated, the events responsible for its pathogenesis and progression remain largely unknown. Histone Deacetylases (HDAC) dependent epigenetic modifications and transforming growth factor (TGF)-β/Smad pathway seem to play an important role in GBM tumorigenesis, resistance to common therapies and poor clinical outcome...
May 16, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28729401/jak1-stat3-activation-through-a-proinflammatory-cytokine-pathway-leads-to-resistance-to-molecularly-targeted-therapy-in-non-small-cell-lung-cancer
#11
Kazuhiko Shien, Vassiliki A Papadimitrakopoulou, Dennis Ruder, Carmen Behrens, Li Shen, Neda Kalhor, Juhee Song, J Jack Lee, Jing Wang, Ximing Tang, Roy S Herbst, Shinichi Toyooka, Luc Girard, John D Minna, Jonathan M Kurie, Ignacio I Wistuba, Julie G Izzo
Molecularly targeted drugs have yielded significant therapeutic advances in oncogene-driven non-small cell lung cancer (NSCLC), but a majority of patients eventually develop acquired resistance. Recently, the relation between proinflammatory cytokine interleukin-6 (IL6) and resistance to targeted drugs has been reported. We investigated the functional contribution of IL6 and the other members of IL6 family proinflammatory cytokine pathway to resistance to targeted drugs in NSCLC cells. In addition, we examined the production of these cytokines by cancer cells and cancer-associated fibroblasts (CAFs)...
July 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28724615/glioblastoma-cellular-cross-talk-converges-on-nf-%C3%AE%C2%BAb-to-attenuate-egfr-inhibitor-sensitivity
#12
Ciro Zanca, Genaro R Villa, Jorge A Benitez, Amy Haseley Thorne, Tomoyuki Koga, Matteo D'Antonio, Shiro Ikegami, Jianhui Ma, Antonia D Boyer, Afsheen Banisadr, Nathan M Jameson, Alison D Parisian, Olesja V Eliseeva, Gabriela F Barnabe, Feng Liu, Sihan Wu, Huijun Yang, Jill Wykosky, Kelly A Frazer, Vladislav V Verkhusha, Maria G Isaguliants, William A Weiss, Timothy C Gahman, Andrew K Shiau, Clark C Chen, Paul S Mischel, Webster K Cavenee, Frank B Furnari
In glioblastoma (GBM), heterogeneous expression of amplified and mutated epidermal growth factor receptor (EGFR) presents a substantial challenge for the effective use of EGFR-directed therapeutics. Here we demonstrate that heterogeneous expression of the wild-type receptor and its constitutively active mutant form, EGFRvIII, limits sensitivity to these therapies through an interclonal communication mechanism mediated by interleukin-6 (IL-6) cytokine secreted from EGFRvIII-positive tumor cells. IL-6 activates a NF-κB signaling axis in a paracrine and autocrine manner, leading to bromodomain protein 4 (BRD4)-dependent expression of the prosurvival protein survivin (BIRC5) and attenuation of sensitivity to EGFR tyrosine kinase inhibitors (TKIs)...
July 19, 2017: Genes & Development
https://www.readbyqxmd.com/read/28721770/study-to-investigate-how-nurse-led-cbt-can-support-women-with-breast-cancer
#13
(no author information available yet)
Breast care nurses are being trained to offer talking therapy in an effort to improve treatment for hot flushes and night sweats.
July 19, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28711686/hydrogel-elasticity-and-microarchitecture-regulate-dental-derived-mesenchymal-stem-cells-host-immune-system-cross-talk
#14
Sahar Ansari, Chider Chen, Mohammad Mahdi Hasani-Sadrabadi, Bo Yu, Homayoun H Zadeh, Benjamin M Wu, Alireza Moshaverinia
The host immune system (T-lymphocytes and their pro-inflammatory cytokines) has been shown to compromise bone regeneration ability of mesenchymal stem cells (MSCs). We have recently shown that hydrogel, used as an encapsulating biomaterial affects the cross-talk among host immune cells and MSCs. However, the role of hydrogel elasticity and porosity in regulation of cross-talk between dental-derived MSCs and immune cells is unclear. In this study, we demonstrate that the modulus of elasticity and porosity of the scaffold influence T-lymphocyte-dental MSC interplay by regulating the penetration of inflammatory T cells and their cytokines...
July 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28706161/the-molecular-mechanisms-of-chemoresistance-in-cancers
#15
REVIEW
Hua-Chuan Zheng
Overcoming intrinsic and acquired drug resistance is a major challenge in treating cancer patients because chemoresistance causes recurrence, cancer dissemination and death. This review summarizes numerous molecular aspects of multi-resistance, including transporter pumps, oncogenes (EGFR, PI3K/Akt, Erk and NF-κB), tumor suppressor gene (p53), mitochondrial alteration, DNA repair, autophagy, epithelial-mesenchymal transition (EMT), cancer stemness, and exosome. The chemoresistance-related proteins are localized to extracellular ligand, membrane receptor, cytosolic signal messenger, and nuclear transcription factors for various events, including proliferation, apoptosis, EMT, autophagy and exosome...
July 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28705643/gpcrs-and-egfr-cross-talk-of-membrane-receptors-in-cancer
#16
REVIEW
Meryem Köse
G protein-coupled receptors (GPCRs) and receptor-tyrosine kinases (RTKs) are two important classes of cell surface receptors proven to be highly tractable as drug targets. Both receptor classes are involved in various complex (patho-) physiological processes in the human body including cellular growth and differentiation. More recently, accumulating data suggest that GPCR-induced activation of EGFR, the prototyp of RTKs represents a major mechanism in various cancers. The present review will focus on this cross-talk with particular emphasis on intracellular scaffold proteins regulating EGFR transactivation...
July 3, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28692043/cross-talk-between-progesterone-receptors-and-retinoic-acid-receptors-in-regulation-of-cytokeratin-5-positive-breast-cancer-cells
#17
L M Fettig, O McGinn, J Finlay-Schultz, D V LaBarbera, S K Nordeen, C A Sartorius
Half of estrogen receptor-positive breast cancers contain a subpopulation of cytokeratin 5 (CK5)-expressing cells that are therapy resistant and exhibit increased cancer stem cell (CSC) properties. We and others have demonstrated that progesterone (P4) increases CK5+ breast cancer cells. We previously discovered that retinoids block P4 induction of CK5+ cells. Here we investigated the mechanisms by which progesterone receptors (PR) and retinoic acid receptors (RAR) regulate CK5 expression and breast CSC activity...
July 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28690839/recent-advances-in-understanding-and-managing-cancer-pain
#18
REVIEW
Marcin Chwistek
Cancer pain remains a significant clinical problem worldwide. Causes of cancer pain are multifactorial and complex and are likely to vary with an array of tumor-related and host-related factors and processes. Pathophysiology is poorly understood; however, new laboratory research points to cross-talk between cancer cells and host's immune and neural systems as an important potential mechanism that may be broadly relevant to many cancer pain syndromes. Opioids remain the most effective pharmaceuticals used in the treatment of cancer pain...
2017: F1000Research
https://www.readbyqxmd.com/read/28690369/psychotherapy-in-historical-perspective
#19
Sarah Marks
This article will briefly explore some of the ways in which the past has been used as a means to talk about psychotherapy as a practice and as a profession, its impact on individuals and society, and the ethical debates at stake. It will show how, despite the multiple and competing claims about psychotherapy's history and its meanings, historians themselves have, to a large degree, not attended to the intellectual and cultural development of many therapeutic approaches. This absence has the potential consequence of implying that therapies have emerged as value-free techniques, outside of a social, economic and political context...
April 2017: History of the Human Sciences
https://www.readbyqxmd.com/read/28687495/extracellular-vesicles-novel-promising-delivery-systems-for-therapy-of-brain-diseases
#20
REVIEW
David Rufino-Ramos, Patrícia R Albuquerque, Vitor Carmona, Rita Perfeito, Rui Jorge Nobre, Luis Pereira de Almeida
Extracellular vesicles (EVs) are cell-derived membrane vesicles virtually secreted by all cells, including brain cells. EVs are a major term that includes apoptotic bodies, microvesicles and exosomes. The release of EVs has been recognized as an important modulator in cross-talking between neurons, astrocytes, microglia and oligodendrocytes, not only in central nervous system (CNS) physiology but also in neurodegenerative and neuroinflammatory disease states as well as in brain tumors, such as glioma. EVs are able to cross the blood brain barrier (BBB), spread to body fluids and reach distant tissues...
July 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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