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https://www.readbyqxmd.com/read/28215024/pharmacogenomics-of-platinum-based-chemotherapy-in-non-small-cell-lung-cancer-focusing-on-dna-repair-systems
#1
REVIEW
Yi Xiong, Bi-Yun Huang, Ji-Ye Yin
Drug therapy for non-small cell lung cancer consists mainly of platinum-based chemotherapy regimens. However, toxicity, drug resistance, and high risk of death have been seen in the clinic, which means there is a need for optimizing the use of medications. Platinum resistance could be mediated by a series of DNA repair pathways, and therefore, these pathways should be taken into account for optimizing drug using. The goal of pharmacogenomics is to elucidate genetic factors, such as DNA repair genes, which might underlie drug efficacy and effectiveness, and to improve therapeutic effects or guide personalized therapy as well...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28214980/sil2r-ratio-as-early-marker-for-response-in-hairy-cell-leukemia-and-the-prognostic-relevance-of-il28b-genotype-to-interferon-%C3%AE-therapy
#2
Stéphanie Jud, Jeroen S Goede, Oliver Senn, Katharina Spanaus, Markus G Manz, Rudolf Benz
Interferon-α (IFNα) was the first effective drug therapy for hairy cell leukemia (HCL). Nowadays, it is used as an alternative treatment in selected patients. Due to unlimited treatment time, monitoring and early prediction of response are important. Moreover, IFNα is used in the therapy of chronic hepatitis C, where a single nucleotide polymorphism of interleukin-28B gene (IL28B) correlates with therapy response. The role of this polymorphism in therapy response of IFNα-treated patients with HCL is unknown...
February 18, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28214894/mechanical-loading-improves-tendon-bone-healing-in-a-rabbit-anterior-cruciate-ligament-reconstruction-model-by-promoting-proliferation-and-matrix-formation-of-mesenchymal-stem-cells-and-tendon-cells
#3
Fanglong Song, Dawei Jiang, Tianchen Wang, Yi Wang, Fengmei Chen, Guoxing Xu, Yifan Kang, Yinquan Zhang
BACKGROUND/AIMS: This study investigated the effect of mechanical stress on tendon-bone healing in a rabbit anterior cruciate ligament (ACL) reconstruction model as well as cell proliferation and matrix formation in co-culture of bone-marrow mesenchymal stem cells (BMSCs) and tendon cells (TCs). METHODS: The effect of continuous passive motion (CPM) therapy on tendon-bone healing in a rabbit ACL reconstruction model was evaluated by histological analysis, biomechanical testing and gene expressions at the tendon-bone interface...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214472/bmp-12-activates-tenogenic-pathway-in-human-adipose-stem-cells-and-affects-their-immunomodulatory-and-secretory-properties
#4
Weronika Zarychta-Wiśniewska, Anna Burdzinska, Agnieszka Kulesza, Kamila Gala, Beata Kaleta, Katarzyna Zielniok, Katarzyna Siennicka, Marek Sabat, Leszek Paczek
BACKGROUND: Cell-based therapy is a treatment method in tendon injuries. Bone morphogenic protein 12 (BMP-12) possesses tenogenic activity and was proposed as a differentiating factor for stem cells directed to transplantation. However, BMPs belong to pleiotropic TGF-β superfamily and have diverse effect on cells. Therefore, the aim of this study was to determine if BMP-12 induces tenogenic differentiation of human adipose stem cells (hASCs) and how it affects other features of this population...
February 18, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28213959/combining-induced-pluripotent-stem-cells-and-genome-editing-technologies-for-clinical-applications
#5
Chia-Yu Chang, Hsiao-Chien Ting, Hong-Lin Su, Jing-Ren Jeng
In this review, we introduce current developments in induced pluripotent stem cells (iPSCs), site-specific nuclease (SSN)-mediated genome editing tools, and the combined application of these two novel technologies in biomedical research and therapeutic trials. The sustainable pluripotent property of iPSCs in vitro not only provides unlimited cell sources for basic research but also benefits precision medicines for human diseases. In addition, rapidly evolving SSN tools efficiently tailor genetic manipulations for exploring gene functions and can be utilized to correct genetic defects of congenital diseases in the near future...
February 17, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28213859/recurrence-in-localized-renal-cell-carcinoma-a-systematic-review-of-contemporary-data
#6
REVIEW
Jacqueline M Speed, Quoc-Dien Trinh, Toni K Choueiri, Maxine Sun
PURPOSE OF REVIEW: Patients with localized renal cell carcinoma (RCC) are at risk of recurrence. The purpose of this review was to characterize the literature on recurrence rates and risk factors after diagnosis of localized RCC. RECENT FINDINGS: Our search revealed that existing data examining the prevalence of recurrence rates predominantly originates from cohorts of patients diagnosed and treated in the 1980s to 1990s, and may therefore not be as useful for counseling for current patients today...
February 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28213833/molecular-imaging-in-synthetic-biology-and-synthetic-biology-in-molecular-imaging
#7
REVIEW
Assaf A Gilad, Mikhail G Shapiro
Biomedical synthetic biology is an emerging field in which cells are engineered at the genetic level to carry out novel functions with relevance to biomedical and industrial applications. This approach promises new treatments, imaging tools, and diagnostics for diseases ranging from gastrointestinal inflammatory syndromes to cancer, diabetes, and neurodegeneration. As these cellular technologies undergo pre-clinical and clinical development, it is becoming essential to monitor their location and function in vivo, necessitating appropriate molecular imaging strategies, and therefore, we have created an interest group within the World Molecular Imaging Society focusing on synthetic biology and reporter gene technologies...
February 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28213714/-current-biomarkers-for-gastric-cancer
#8
G B Baretton, D E Aust
Gastric cancer is still a relevant malignant disease with high morbidity and mortality. Current molecular genetic data show that gastric cancer, as other solid tumors as well, is not a single entity but consists of several molecular subtypes of gastric cancer with diverse biology. The increasing understanding of molecular pathways is the basis for innovative therapies. These either directly target altered signaling pathways or genes in tumor cells or as in immune checkpoint inhibitors, indirectly target tumor cells by blocking tumor-induced immune inhibition leading to improvement in the prognosis...
February 17, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28213609/gut-microbial-profile-is-altered-in-primary-biliary-cholangitis-and-partially-restored-after-udca-therapy
#9
Ruqi Tang, Yiran Wei, Yanmei Li, Weihua Chen, Haoyan Chen, Qixia Wang, Fan Yang, Qi Miao, Xiao Xiao, Haiyan Zhang, Min Lian, Xiang Jiang, Jun Zhang, Qin Cao, Zhuping Fan, Maoying Wu, Dekai Qiu, Jing-Yuan Fang, Aftab Ansari, M Eric Gershwin, Xiong Ma
OBJECTIVE: A close relationship between gut microbiota and some chronic liver disorders has recently been described. Herein, we systematically performed a comparative analysis of the gut microbiome in primary biliary cholangitis (PBC) and healthy controls. DESIGN: We first conducted a cross-sectional study of 60 ursodeoxycholic acid (UDCA) treatment-naïve patients with PBC and 80 matched healthy controls. Second, an independent cohort composed of 19 treatment-naïve patients and 34 controls was used to validate the results...
February 17, 2017: Gut
https://www.readbyqxmd.com/read/28213588/a-differential-autophagy-dependent-response-to-dna-double-strand-brakes-in-bone-marrow-mesenchymal-stem-cells-from-sporadic-als-patients
#10
Shane Wald-Altman, Edward Pichinuk, Or Kakhlon, Miguel Weil
Amyotrophic Lateral Sclerosis (ALS) is an incurable motor neurodegenerative disease caused by a diversity of genetic and environmental factors leading to neuromuscular degeneration and pathophysiological implications in non-neural systems. Our previous work showed abnormal transcriptional expression levels of biomarker genes in non-neuronal cell samples from ALS patients. The same genes proved to be differentially expressed in brain, spinal cord and muscle of the SOD1(G93A) ALS mouse model. These observations support the pathophysiological relevance of the ALS biomarkers discovered in human mesenchymal stem cells (hMSC) isolated from bone marrow samples of ALS patients (ALS-hMSC)...
February 16, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28213567/vitamin-d-receptor-as-a-target-for-breast-cancer-therapy
#11
Alyson Murray, Stephen Madden, Naoise C Synnott, Rut Klinger, Darran O'Connor, Norma O'Donovan, William Gallagher, John Crown, Michael Duffy
Considerable epidemiological evidence suggests that high levels of circulating vitamin D (VD) are associated with a decreased incidence and increased survival from cancer, i.e., VD may possess anti-cancer properties. The aim of this investigation was therefore to investigate the anti-cancer potential of a low calcemic vitamin D analogue, i.e., inecalcitol and compare it with the active form of vitamin D, i.e., calcitriol, in a panel of breast cancer cell lines (n = 15). Using the MTT assay, IC50 concentrations for response to calcitriol varied from 0...
February 17, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28213468/microencapsulation-of-lefty-secreting-engineered-cells-for-pulmonary-fibrosis-therapy-in-mice
#12
Hongge Ma, Shupei Qiao, Zeli Wang, Shuai Geng, Yufang Zhao, Xiaolu Hou, Weiming Tian, Xiongbiao Chen, Lifen Yao
Idiopathic pulmonary fibrosis (IPF) is a progressive disease that causes unremitting deposition of extracellular matrix proteins, thus resulting in distortion of the pulmonary architecture and impaired gas exchange. Associated with high morbidity and mortality, IPF is generally refractory to current pharmacological therapies. Lefty A, a potent inhibitor of transforming growth factor (TGF)-β signaling, has been shown to have promising antifibrotic ability in vitro for the treatment of renal fibrosis and other potential organ fibroses...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28213356/otx2-activity-at-distal-regulatory-elements-shapes-the-chromatin-landscape-of-group-3-medulloblastoma
#13
Gaylor Boulay, Mary E Awad, Nicolo Riggi, Tenley C Archer, Sowmya Iyer, Wannaporn E Boonseng, Nikki E Rossetti, Beverly Naigles, Shruthi Rengarajan, Angela Volorio, James C Kim, Jill P Mesirov, Pablo Tamayo, Scott L Pomeroy, Martin J Aryee, Miguel N Rivera
Medulloblastoma is the most frequent malignant pediatric brain tumor and is divided into at least four subgroups known as WNT, SHH, Group 3, and Group 4. Here, we characterized gene regulation mechanisms in the most aggressive subtype, Group 3 tumors, through genome-wide chromatin and expression profiling. Our results show that most active distal sites in these tumors are occupied by the transcription factor OTX2. Highly active OTX2-bound enhancers are often arranged as clusters of adjacent peaks and are also bound by the transcription factor NEUROD1...
February 17, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28213069/a-pilot-study-of-cell-mediated-gene-therapy-for-spinal-cord-injury-in-mini-pigs
#14
Islamov Rustem Robertovich, Sokolov Mikhail Evgenyevich, Bashirov Farid Vagizovich, Fadeev Filip Olegovich, Shmarov Maxim Michaylovich, Naroditskiy Boris Savelyevich, Povysheva Tatyana Vyacheslavovna, Shaymardanova Gulnara Ferdinantovna, Yakupov Radik Albertovich, Chelyshev Yuri Aleksandrovich, Lavrov Igor Aleksandrovich
Currently, in clinical practice there is no efficient way to overcome the sequences of neurodegeneration after spinal cord traumatic injury. Using a new experimental model of spinal cord contusion injury on miniature pigs, we proposed to deliver therapeutic genes encoding vascular endothelial growth factor (VEGF), glial cell line-derived neurotrophic factor (GDNF) and neural cell adhesion molecule (NCAM) to the damaged area, using umbilical cord blood mononuclear cells (UCBC). In this study, genetically engineered UCBC (2×10(6) cells in 200 ml of saline) were injected intrathecally to mini-pigs 10days after SCI...
February 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28212737/gene-delivery-of-apoptin-derived-peptide-using-an-adeno-associated-virus-vector-inhibits-glioma-and-prolongs-animal-survival
#15
Xiuli Zhong, Hengyu Zhao, Songhe Liang, DanYang Zhou, Wenjia Zhang, Lijie Yuan
Glioblastoma (GBM) is the most common malignant brain tumor in adults. We designed an adeno-associated virus (AAV) vector for intracranial delivery of the secreted HSP70-targeted peptide APOPTIN derived from Apoptin to GBM tumors. We applied this therapy to GBM models using human U87MG glioma cells and GBM xenograft models in mice. In U87MG and U251MG cells, conditioned medium from AAV2-apoptin-derived peptide (ADP)-expressing cells induced 83% and 78% cell death. In mice bearing intracranial U87MG tumors treated with AAV2-ADP, treatment resulted in a significant decrease in tumor growth and longer survival in mice bearing orthotopic invasive GBM brain tumors...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28212730/the-integrated-stress-response-and-proteotoxicity-in-cancer-therapy
#16
REVIEW
David J McConkey
A variety of different forms of cellular stress can cause protein misfolding and aggregation and proteotoxicity. The cytoprotective response to proteotoxicity is termed the integrated stress response and involves 4 distinct serine/threonine protein kinases that converge on the translation initiation factor eIF2α, resulting in phosphorylation at S51, cell cycle arrest, and a general inhibition of global protein synthesis. Phosphorylation of eIF2α also promotes translation of ATF4 and the expression of ATF4 target genes that ameliorate proteotoxic stress but can also promote apoptosis...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28212619/brain-and-liver-pathology-amyloid-deposition-and-interferon-responses-among-older-hiv-positive-patients-in-the-late-haart-era
#17
Isaac H Solomon, Umberto De Girolami, Sukrutha Chettimada, Vikas Misra, Elyse J Singer, Dana Gabuzda
BACKGROUND: HIV+ patients on highly active antiretroviral therapy (HAART) with suppressed viral loads have a low incidence of HIV-associated dementia, but increased prevalence of milder forms of HIV-associated neurocognitive disorders (HAND). These milder forms of HAND are often associated with minimal histological abnormalities, and their pathophysiology is unclear. Comorbidities, altered amyloid metabolism, accelerated brain aging, and activated interferon responses are suspected to play a role in HAND pathogenesis in HAART-treated persons...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28212617/surfactant-protein-d-sp-d-gene-polymorphisms-and-serum-level-as-predictors-of-susceptibility-and-prognosis-of-acute-kidney-injury-in-the-chinese-population
#18
Jiao Liu, Guang Li, Lianghai Li, Zhiyong Liu, Qingshan Zhou, Guirong Wang, Dechang Chen
BACKGROUND: Injury to the kidney epithelial barrier is a characteristic feature of acute kidney injury (AKI). Serum surfactant protein-D (SP-D), a known biomarker of damaged alveolar epithelium, is also secreted by renal tubular epithelial cells. Therefore, the aim of this study was to examine the possible association of SP-D with AKI susceptibility and prognosis. METHODS: In this study, 159 AKI patients and 120 healthy individuals were included. SP-D polymorphisms Thr11Met and Thr160Ala, AKI patient serum SP-D levels at days 1, 3 and 7 and urine KIM-1 levels in both AKI patients and controls were examined...
February 17, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28212575/upregulation-of-mucin-glycoprotein-muc1-in-the-progression-to-esophageal-adenocarcinoma-and-therapeutic-potential-with-a-targeted-photoactive-antibody-drug-conjugate
#19
Mohammed Adil Butt, Hayley Pye, Rehan J Haidry, Dahmane Oukrif, Saif-U-Rehman Khan, Ignazio Puccio, Michael Gandy, Halla W Reinert, Ellie Bloom, Mohammed Rashid, Gokhan Yahioglu, Mahendra P Deonarain, Rifat Hamoudi, Manuel Rodriguez-Justo, Marco R Novelli, Laurence B Lovat
BACKGROUND: Mucin glycoprotein 1 (MUC1) is a glycosylated transmembrane protein on epithelial cells. We investigate MUC1 as a therapeutic target in Barrett's epithelium (BE) and esophageal adenocarcinoma (EA) and provide proof of concept for a light based therapy targeting MUC1. RESULTS: MUC1 was present in 21% and 30% of significantly enriched pathways comparing BE and EA to squamous epithelium respectively. MUC1 gene expression was x2.3 and x2.2 higher in BE (p=<0...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212568/an-anthocyanin-rich-strawberry-extract-induces-apoptosis-and-ros-while-decreases-glycolysis-and-fibrosis-in-human-uterine-leiomyoma-cells
#20
Md Soriful Islam, Francesca Giampieri, Milijana Janjusevic, Massimiliano Gasparrini, Tamara Y Forbes-Hernandez, Luca Mazzoni, Stefania Greco, Stefano Raffaele Giannubilo, Andrea Ciavattini, Bruno Mezzetti, Franco Capocasa, Mario Castellucci, Maurizio Battino, Pasquapina Ciarmela
Uterine leiomyomas are highly prevalent benign tumors in reproductive aged women. Unfortunately, medical treatments are still limited and no preventive therapies have been developed. In the present study, we investigated the therapeutic effects of strawberry extract on uterine leiomyoma cells. Leiomyoma and myometrial cells were treated with strawberry (cultivar Alba) extract (250 μg/ml) for 48 h to measure apoptosis, reactive oxygen species (ROS), oxidative phosphorylation (OCR, oxygen consumption rate) and glycolysis (ECAR, extracellular acidification rate) as well as fibrosis associated gene and/or protein expression...
February 15, 2017: Oncotarget
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