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Molecular therapy

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https://www.readbyqxmd.com/read/29792512/use-of-t2mr-in-invasive-candidiasis-with-and-without-candidemia
#1
Ioannis M Zacharioudakis, Fainareti N Zervou, Eleftherios Mylonakis
The mortality associated with invasive candidiasis remains unacceptably high. The T2 magnetic resonance (T2MR) assay is a novel US FDA-approved molecular diagnostic assay for the diagnosis of candidemia that can rapidly detect the five most commonly isolated Candida spp. In clinical trials, T2MR has exhibited good clinical sensitivity and specificity. Potential benefits from the adoption of T2MR technology in the diagnostic and therapeutic algorithms for invasive candidiasis can arise from timely diagnosis of disease, increased case detection, tailored therapy and decrease in empiric antifungal treatment...
May 24, 2018: Future Microbiology
https://www.readbyqxmd.com/read/29792309/metabolic-and-physiologic-imaging-biomarkers-of-the-tumor-microenvironment-predict-treatment-outcome-with-radiation-or-a-hypoxia-activated-prodrug-in-mice
#2
Shingo Matsumoto, Shun Kishimoto, Keita Saito, Yoichi Takakusagi, Jeeva P Munasinghe, Nallathamby Devasahayam, Charles Hart, Robert J Gillies, James B Mitchell, Murali C Krishna
Pancreatic ductal adenocarcinoma (PDAC) is characterized by hypoxic niches that lead to treatment resistance. Therefore, studies of tumor oxygenation and metabolic profiling should contribute to improved treatment strategies. Here we define two imaging biomarkers that predict differences in tumor response to therapy: 1) partial oxygen pressure (pO2), measured by EPR imaging; and 2) [1-13C] pyruvate metabolism rate, measured by hyperpolarized 13C MRI. Three human PDAC xenografts with varying treatment sensitivity (Hs766t, MiaPaCa-2, and Su...
May 23, 2018: Cancer Research
https://www.readbyqxmd.com/read/29792307/putative-vaccine-candidates-and-drug-targets-identified-by-reverse-vaccinology-and-subtractive-genomics-approaches-to-control-haemophilus-ducreyi-the-causative-agent-of-chancroid
#3
Alissa de Sarom, Arun Kumar Jaiswal, Sandeep Tiwari, Letícia de Castro Oliveira, Debmalya Barh, Vasco Azevedo, Carlo Jose Oliveira, Siomar de Castro Soares
Chancroid is a sexually transmitted infection (STI) caused by the Gram-negative bacterium Haemophilus ducreyi The control of chancroid is difficult and the only current available treatment is antibiotic therapy; however, antibiotic resistance has been reported in endemic areas. Owing to recent outbreaks of STIs worldwide, it is important to keep searching for new treatment strategies and preventive measures. Here, we applied reverse vaccinology and subtractive genomic approaches for the in silico prediction of potential vaccine and drug targets against 28 strains of H...
May 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29792227/integrated-time-course-omics-analysis-distinguishes-immediate-therapeutic-response-from-acquired-resistance
#4
Genevieve Stein-O'Brien, Luciane T Kagohara, Sijia Li, Manjusha Thakar, Ruchira Ranaweera, Hiroyuki Ozawa, Haixia Cheng, Michael Considine, Sandra Schmitz, Alexander V Favorov, Ludmila V Danilova, Joseph A Califano, Evgeny Izumchenko, Daria A Gaykalova, Christine H Chung, Elana J Fertig
BACKGROUND: Targeted therapies specifically act by blocking the activity of proteins that are encoded by genes critical for tumorigenesis. However, most cancers acquire resistance and long-term disease remission is rarely observed. Understanding the time course of molecular changes responsible for the development of acquired resistance could enable optimization of patients' treatment options. Clinically, acquired therapeutic resistance can only be studied at a single time point in resistant tumors...
May 23, 2018: Genome Medicine
https://www.readbyqxmd.com/read/29792166/the-pdgfr%C3%AE-erk1-2-pathway-regulates-cdcp1-expression-in-triple-negative-breast-cancer
#5
Luca Forte, Federica Turdo, Cristina Ghirelli, Piera Aiello, Patrizia Casalini, Marilena Valeria Iorio, Elvira D'Ippolito, Patrizia Gasparini, Roberto Agresti, Beatrice Belmonte, Gabriella Sozzi, Lucia Sfondrini, Elda Tagliabue, Manuela Campiglio, Francesca Bianchi
BACKGROUND: CDCP1, a transmembrane protein with tumor pro-metastatic activity, was recently identified as a prognostic marker in TNBC, the most aggressive breast cancer subtype still lacking an effective molecular targeted therapy. The mechanisms driving CDCP1 over-expression are not fully understood, although several stimuli derived from tumor microenvironment, such as factors present in Wound Healing Fluids (WHFs), reportedly increase CDCP1 levels. METHODS: The expression of CDCP1, PDGFRβ and ERK1/2cell was tested by Western blot after stimulation of MDA-MB-231 cells with PDGF-BB and, similarly, in presence or not of ERK1/2 inhibitor in a panel of TNBC cell lines...
May 23, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29791608/hiv-1-genetic-diversity-and-resistance-to-antiretroviral-drugs-among-pregnant-women-in-ribeir%C3%A3-o-preto-sp-brazil-cross-sectional-study
#6
Ana Teresa Mancini Pimenta, Isadora Alonso Correa, Patricia Pereira Dos Santos Melli, Renata Abduch, Geraldo Duarte, José Carlos Couto-Fernandez, Silvana Maria Quintana
BACKGROUND: Increasing genetic diversity of HIV-1 and emergence of drug-resistant mutations may reduce the efficacy of antiretroviral therapy and prophylaxis that are used to prevent mother-to-child transmission. The aim of this study was to assess the genetic diversity and prevalence of drug-resistant mutations among HIV-infected pregnant women. DESIGN AND SETTING: Cross-sectional study at an outpatient clinic for infectious diseases within gynecology and obstetrics...
March 2018: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29791595/microrna-3129-promotes-cell-proliferation-in-gastric-cancer-cell-line-sgc7901-via-positive-regulation-of-prb
#7
Shaofeng Yang, Nan Sheng, Lili Pan, Jing Cao, Jiao Liu, Ran Ma
Several microRNAs (miRNAs) have been reported as oncogenes or tumor suppressors in many cancers, including gastric cancer (GC). However, the role and molecular mechanism of miR-3129 in GC is largely unknown. We aimed to explore the function and the underlying molecular mechanism of miR-3129 in GC. Cancer tissues and corresponding adjacent tissues were collected from 50 patients with GC, and the expression of miR-3129 was detected by RT-qPCR. The expression of miR-3129 and pRb in human GC cell line SCG7091 was altered by transient transfection...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29790851/rig-i-enhances-ifn-%C3%AE-response-by-promoting-antiviral-protein-expression-in-patients-with-chronic-hepatitis-b
#8
Shu Wu, Jinpiao Lin, Ya Fu, Qishui Ou
BACKGROUND: IFN-α is widely used for the treatment of chronic hepatitis B (CHB) infection due to its high HBsAg loss. However, IFN-α treatment has a number of side effects. Thus, identification of molecular biomarkers to predict IFN-α therapeutic effect would be useful in the clinic. In this study, we aim to study the role of RIG-I in prediction of IFN-α curative effect of CHB patients. METHODS: A total of 65 CHB patients treated with PegIFN-αweekly for 48 weeks were enrolled...
May 23, 2018: Antiviral Therapy
https://www.readbyqxmd.com/read/29790810/a-review-of-novel-technologies-and-techniques-associated-with-identification-of-bloodstream-infection-aetiologies-and-rapid-antimicrobial-genotypic-and-quantitative-phenotypic-determination
#9
Stephen Poole, Stephen P Kidd, Kordo Saeed
Introduction The antimicrobial aspect of management of patients with blood stream infections (BSI) and sepsis is time critical. In an era of increasing antimicrobial resistance, rapid detection and identification of bacteria with antimicrobial susceptibility is crucial to direct therapy early in the course of illness. Molecular techniques offer a potential solution to this. Areas covered In the present review the authors have discussed a number of novel solutions utilising a variety of molecular techniques for pathogen detection, identification and antimicrobial susceptibility...
May 23, 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29790357/-control-editing-of-the-genome-within-reach-or-already-in-our-hands
#10
Radim Brdička, Radoslav Omelka
Although different genome editing tools have been around for decades, the recent emergence of cheap, quick, and accessible CRISPR/Cas9 technology has led to a revolution in this field. The technique has the potential to transform medicine from curative into preventive using a gene therapy. An application of genome editing has proven to be effective for both genetic and non-genetic (e.g. infectious) diseases. However, cancer and rare diseases treatment is at the forefront of interest. Concurrently, the legal and ethical frameworks should be discussed, especially as the technology moves towards a modification of the germ cells or embryos...
2018: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/29790124/colorectal-cancer-why-does-side-matter
#11
Claire Gallois, Simon Pernot, Aziz Zaanan, Julien Taieb
Colorectal cancer (CRC) is a heterogeneous disease, and the search for clinical and molecular prognostic and predictive factors is thus necessary to better tailor each individual patient's management. Primary tumor location (PTL) seems to act as a master prognostic factor pooling different clinical, pathological, and molecular poor prognostic factors. In fact, right-sided (RS) CRC patients are more frequently female and elderly with microsatellite unstable, BRAF mutated, CpG island methylator phenotype (CIMP)-high, poorly differentiated tumors, compared to left-sided (LS) CRC patients...
May 22, 2018: Drugs
https://www.readbyqxmd.com/read/29790107/the-role-of-pharmacogenomics-in-bipolar-disorder-moving-towards-precision-medicine
#12
REVIEW
Claudia Pisanu, Urs Heilbronner, Alessio Squassina
Bipolar disorder (BD) is a common and disabling psychiatric condition with a severe socioeconomic impact. BD is treated with mood stabilizers, among which lithium represents the first-line treatment. Lithium alone or in combination is effective in 60% of chronically treated patients, but response remains heterogenous and a large number of patients require a change in therapy after several weeks or months. Many studies have so far tried to identify molecular and genetic markers that could help us to predict response to mood stabilizers or the risk for adverse drug reactions...
May 22, 2018: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/29789958/prosthetic-joint-infections-an-update
#13
REVIEW
C L Abad, A Haleem
PURPOSE OF REVIEW: Prosthetic joint infection (PJI) is a rare but serious complication that is frequently misdiagnosed. We aimed to highlight the nuances of PJI diagnosis and antimicrobial therapies and provide clarity in key areas of management. RECENT FINDINGS: Current research in PJI centers on a potential role for diagnostic biomarkers, molecular techniques, and implant sonication to reduce culture-negativity rates. The optimal duration of antimicrobial therapy remains controversial...
May 22, 2018: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/29789949/photobiomodulation-therapy-in-the-management-of-oral-mucositis-search-for-the-optimal-clinical-treatment-parameters
#14
Sharon Elad, Praveen Arany, Rene-Jean Bensadoun, Joel B Epstein, Andrei Barasch, Judith Raber-Durlacher
This commentary attempts to clarify the setting of photobiomodulation (BPM) therapy in the management of oral mucositis. The suggested dose range balances efficacy data with our current understanding about PBM safety. The literature about the molecular basis of photobiomodulation and its controversial relationship to malignant transformation is briefly presented.
May 22, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29789479/anandamide-revisited-how-cholesterol-and-ceramides-control-receptor-dependent-and-receptor-independent-signal-transmission-pathways-of-a-lipid-neurotransmitter
#15
REVIEW
Coralie Di Scala, Jacques Fantini, Nouara Yahi, Francisco J Barrantes, Henri Chahinian
Anandamide is a lipid neurotransmitter derived from arachidonic acid, a polyunsaturated fatty acid. The chemical differences between anandamide and arachidonic acid result in a slightly enhanced solubility in water and absence of an ionisable group for the neurotransmitter compared with the fatty acid. In this review, we first analyze the conformational flexibility of anandamide in aqueous and membrane phases. We next study the interaction of the neurotransmitter with membrane lipids and discuss the molecular basis of the unexpected selectivity of anandamide for cholesterol and ceramide from among other membrane lipids...
May 22, 2018: Biomolecules
https://www.readbyqxmd.com/read/29789421/pericytes-in-the-premetastatic-niche
#16
REVIEW
Ana E Paiva, Luiza Lousado, Daniel A P Guerra, Patrick O Azevedo, Isadora F G Sena, Julia P Andreotti, Gabryella S P Santos, Ricardo Gonçalves, Akiva Mintz, Alexander Birbrair
The premetastatic niche formed by primary tumor-derived molecules contributes to fixation of cancer metastasis. The design of efficient therapies is limited by the current lack of knowledge about the details of cellular and molecular mechanisms involved in the premetastatic niche formation. Recently, the role of pericytes in the premetastatic niche formation and lung metastatic tropism was explored by using state-of-the-art techniques, including in vivo lineage-tracing and mice with pericyte-specific KLF4 deletion...
May 22, 2018: Cancer Research
https://www.readbyqxmd.com/read/29789364/bacterial-quorum-sensing-and-microbial-community-interactions
#17
REVIEW
Rhea G Abisado, Saida Benomar, Jennifer R Klaus, Ajai A Dandekar, Josephine R Chandler
Many bacteria use a cell-cell communication system called quorum sensing to coordinate population density-dependent changes in behavior. Quorum sensing involves production of and response to diffusible or secreted signals, which can vary substantially across different types of bacteria. In many species, quorum sensing modulates virulence functions and is important for pathogenesis. Over the past half-century, there has been a significant accumulation of knowledge of the molecular mechanisms, signal structures, gene regulons, and behavioral responses associated with quorum-sensing systems in diverse bacteria...
May 22, 2018: MBio
https://www.readbyqxmd.com/read/29789356/risk-adapted-treatment-of-acute-promyelocytic-leukemia-results-from-international-consortium-for-childhood-apl
#18
Anna Maria Testi, Andrea Pession, Daniela Diverio, David Grimwade, Brenda Gibson, Amilcar Cardoso de Azevedo, Lorena Moran, Guy Leverger, Sarah Elitzur, Henrik Hasle, Jutte van der Werff Ten Bosch, Owen Smith, Marisa De Rosa, Alfonso Piciocchi, Francesco Lo Coco, Robin Foà, Franco Locatelli, Gertjan J L Kaspers
Pediatric acute promyelocytic leukemia (APL), a rare childhood neoplasm, can be cured with all-trans retinoic acid (ATRA) and anthracycline. However, most published trials to date have employed high cumulative doses of anthracyclines. Here, we report the outcome of patients with newly diagnosed APL enrolled into the International Consortium for Childhood APL (ICC-APL-01) trial, which reduced anthracycline exposure but extended that of ATRA. The study recruited 258 children/adolescents with molecularly/cytogenetically-proven APL...
May 22, 2018: Blood
https://www.readbyqxmd.com/read/29788960/ecto-5-nucleotidase-cd73-attenuates-inflammation-after-spinal-cord-injury-by-promoting-macrophages-microglia-m2-polarization-in-mice
#19
Shun Xu, Wei Zhu, Minghao Shao, Fan Zhang, Ji Guo, Haocheng Xu, Jianyuan Jiang, Xiaosheng Ma, Xinlei Xia, Xiuling Zhi, Ping Zhou, Feizhou Lu
BACKGROUND: Immune activation, specifically activation of macrophages and resident microglia, leading to inflammation is a key component in the progression of spinal cord injury (SCI). Macrophages/microglia exist in two states-the classically activated M1 phenotype that confers pro-inflammatory effects or the alternatively activated M2 phenotype that confers anti-inflammatory effects. Ecto-5'-nucleotidase (CD73) is an immunosuppressive molecule intricately involved in adaptive and innate immune responses and is able to dephosphorylate AMP to adenosine...
May 22, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29788932/geographic-variation-in-the-aetiology-epidemiology-and-microbiology-of-bronchiectasis
#20
REVIEW
Ravishankar Chandrasekaran, Micheál Mac Aogáin, James D Chalmers, Stuart J Elborn, Sanjay H Chotirmall
Bronchiectasis is a disease associated with chronic progressive and irreversible dilatation of the bronchi and is characterised by chronic infection and associated inflammation. The prevalence of bronchiectasis is age-related and there is some geographical variation in incidence, prevalence and clinical features. Most bronchiectasis is reported to be idiopathic however post-infectious aetiologies dominate across Asia especially secondary to tuberculosis. Most focus to date has been on the study of airway bacteria, both as colonisers and causes of exacerbations...
May 22, 2018: BMC Pulmonary Medicine
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