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https://www.readbyqxmd.com/read/28927112/non-small-cell-lung-cancer-pc-9-cells-exhibit-increased-sensitivity-to-gemcitabine-and-vinorelbine-upon-acquiring-resistance-to-egfr-tyrosine-kinase-inhibitors
#1
Junko Hamamoto, Hiroyuki Yasuda, Kaito Aizawa, Makoto Nishino, Shigenari Nukaga, Toshiyuki Hirano, Ichiro Kawada, Katsuhiko Naoki, Tomoko Betsuyaku, Kenzo Soejima
Epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (EGFR-TKIs) are widely used for the treatment of non-small cell lung cancers (NSCLCs) harboring EGFR-activating mutations. However, lung cancer cells inevitably acquire resistance to these EGFR-TKIs. The majority of patients whose lung cancer acquires resistance to EGFR-TKIs are subjected to treatment using cytotoxic agents. The present study aimed to determine if lung cancer cells acquiring resistance to EGFR-TKIs also develop altered sensitivity to cytotoxic agents...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927043/expression-of-p-egfr-and-p-akt-protein-in-esophageal-squamous-cell-carcinoma-and-its-prognosis
#2
Zheng-Zheng Shan, Pei-Nan Chen, Feng Wang, Jun Wang, Qing-Xia Fan
The phosphorylated epidermal growth factor receptor (P-EGFR) and phosphorylated Akt (P-Akt) protein in esophageal squamous cell carcinoma (ESCC) were studied, and its significance in clinical prognosis of patients was assessed. The expression of P-EGFR and P-Akt protein in 83 cases of ESCC and 83 normal esophageal tissues was determined by immunohistochemical staining. Log-rank test and correlation analysis were used to analyze the prognosis of ESCC. The positive expression of P-EGFR in ESCC was 88% (73/83 cases) compared with 41% in normal esophageal mucosa (34/83 cases) (P<0...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926904/-erlotinib-in-the-treatment-of-small-cell-lung-cancer-with-egfr-mutation-a-case-report
#3
J Q Zhang, F Xu, X L Xu, H C Zhou
No abstract text is available yet for this article.
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926605/assessment-of-common-somatic-mutations-of-egfr-kras-braf-nras-in-pulmonary-non-small-cell-carcinoma-using-iplex%C3%A2-hs-a-new-highly-sensitive-assay-for-the-massarray%C3%A2-system
#4
Bobbie C Sutton, Ryan T Birse, Kevin Maggert, Tammy Ray, Jessica Hobbs, Amobi Ezenekwe, Jason Kazmierczak, Michael Mosko, Joan Kish, Andrew Bullock, Zonggao Shi, M Sharon Stack, Darryl Irwin
Increased early detection and personalized therapy for lung cancer have coincided with greater use of minimally invasive sampling techniques such as endobronchial ultrasound-guided biopsy (EBUS), endoscopic ultrasound-guided biopsy (EUS), and navigational biopsy, as well as thin needle core biopsies. As many lung cancer patients have late stage disease and other comorbidities that make open surgical procedures hazardous, the least invasive biopsy technique with the highest potential specimen yield is now the preferred first diagnostic study...
2017: PloS One
https://www.readbyqxmd.com/read/28924490/the-lauric-acid-activated-signaling-prompts-apoptosis-in-cancer-cells
#5
Rosamaria Lappano, Anna Sebastiani, Francesca Cirillo, Damiano Cosimo Rigiracciolo, Giulia Raffaella Galli, Rosita Curcio, Roberta Malaguarnera, Antonino Belfiore, Anna Rita Cappello, Marcello Maggiolini
The saturated medium-chain fatty-acid lauric acid (LA) has been associated to certain health-promoting benefits of coconut oil intake, including the improvement of the quality of life in breast cancer patients during chemotherapy. As it concerns the potential to hamper tumor growth, LA was shown to elicit inhibitory effects only in colon cancer cells. Here, we provide novel insights regarding the molecular mechanisms through which LA triggers antiproliferative and pro-apoptotic effects in both breast and endometrial cancer cells...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28923853/adaptation-to-tki-treatment-reactivates-erk-signaling-in-tyrosine-kinase-driven-leukemias-and-other-malignancies
#6
Joshua K Bruner, Hayley S Ma, Li Li, Alice Can Ran Qin, Michelle A Rudek, Richard J Jones, Mark J Levis, Keith W Pratz, Christine A Pratilas, Donald Small
FLT3 tyrosine kinase inhibitors (TKI) have been tested extensively to limited benefit in acute myeloid leukemia. We hypothesized that FLT3/ITD leukemia cells exhibit mechanisms of intrinsic signaling adaptation to TKI treatment that are associated with an incomplete response. Here we identified reactivation of ERK signaling within hours following treatment of FLT3/ITD AML cells with selective inhibitors of FLT3. When these cells were treated with inhibitors of both FLT3 and MEK in combination, ERK reactivation was abrogated and anti-leukemia effects were more pronounced compared to either drug alone...
September 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28923834/is-chronic-dialysis-the-right-hard-renal-end-point-to-evaluate-renoprotective-drug-effects
#7
Misghina Weldegiorgis, Dick de Zeeuw, Jamie P Dwyer, Peter Mol, Hiddo J L Heerspink
BACKGROUND AND OBJECTIVES: RRT and doubling of serum creatinine are considered the objective hard end points in nephrology intervention trials. Because both are assumed to reflect changes in the filtration capacity of the kidney, drug effects, if present, are attributed to kidney protection. However, decisions to start RRT are not only on the basis of filtration capacity of the kidney, but also on other factors. We therefore compared the time to RRT with the time to a fixed eGFR threshold and assessed the effect of the renoprotective drug irbesartan on both components...
September 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28923620/late-conversion-to-belatacept-after-kidney-transplantation-outcome-and-prognostic-factors
#8
M Dürr, N Lachmann, B Zukunft, D Schmidt, K Budde, S Brakemeier
BACKGROUND: Conversion to belatacept at a later point after kidney transplantation (KT) as a rescue therapy has been shown to be beneficiary in an increasing number of patients, but prognostic factors for a favorable outcome have never been investigated. METHODS: The present study analyzed all KT patients after late conversion to belatacept in a single center regarding graft survival and changes in estimated glomerular filtration rate (eGFR), proteinuria, and mean fluorescence intensity (MFI) of donor-specific antibodies (DSA)...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923619/ten-year-follow-up-of-pharmacokinetics-guided-very-early-cyclosporine-minimization-synchronized-with-everolimus-initiation-in-de-novo-kidney-transplantation
#9
V Sumethkul, P Tankee, S Worawichawong, S Jirasiritham
BACKGROUND: Minimization of calcineurin inhibitor (CNI) from the 1st week after kidney transplantation (KT) may reduce the risk of CNI nephrotoxicity. METHODS: Ten de novo KT recipients who received full exposure cyclosporine (CsA) and prednisolone as initial therapy were enrolled. Initial CsA minimization was 50% and started at day 7 after KT. This was synchronized with everolimus (EVL) initiation. Target trough level of EVL was 3-8 ng/mL. Pharmacokinetics studies of CsA and EVL were studied at week 4...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923567/a-water-soluble-polysaccharide-from-the-roots-of-polygala-tenuifolia-suppresses-ovarian-tumor-growth-and-angiogenesis-in-vivo
#10
Hua Yao, Ping Cui, Dan Xu, Yunduo Liu, Qinghua Tian, Fubin Zhang
PTP, one polysaccharide extracted from the roots of Polygala tenuifolia, has displayed anti-cancer activity in several types of ovarian cancer cells. This study aims to elucidate the structure of PTP and investigate its anticancer effects against SKOV3 xenograft tumor growth in BALB/c mice, as well as the underlying mechanisms involved. GC-MS and NMR data indicate that PTP has a backbone composed of 1,4,6-linked-β-Galp, 1,4-linked-β-Galp and 1,4-linked-β-Glcp, with non-reducing terminal 1-linked-α-Glcp attached to O-6 of 1,4,6-linked-β-Galp...
September 15, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28922687/comparison-of-perioperative-renal-and-oncologic-outcomes-in-robotic-assisted-versus-open-partial-nephrectomy
#11
Jo-Lynn Tan, Mark Frydenberg, Jeremy Grummet, Uri Hanegbi, Ross Snow, Sarah Mann, Kirobel Begashaw, Daniel Moon
BACKGROUND: To compare perioperative, renal and oncological outcomes after robotic-assisted partial nephrectomy (RAPN) versus open partial nephrectomy (OPN) for the treatment of renal tumours. METHODS: All partial nephrectomies performed at a Metropolitan Urology Centre between 2010 and 2016 were analysed. Baseline data was collected for patient demographics, tumour characteristics (tumour size, laterality and polarity, RENAL scores), and perioperative variables (e...
September 18, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28922560/betacellulin-regulates-the-proliferation-and-differentiation-of-retinal-progenitor-cells-in-vitro
#12
Dandan Zhang, Bingqiao Shen, Yi Zhang, Ni Ni, Yuyao Wang, Fan Xianqun, Hao Sun, Ping Gu
Retinal progenitor cells (RPCs) hold great potential for the treatment of retinal degenerative diseases. However, their proliferation capacity and differentiation potential towards specific retinal neurons are limited, which limit their future clinical applications. Thus, it is important to improve the RPCs' ability to proliferate and differentiate. Currently, epidermal growth factor (EGF) is commonly used to stimulate RPC growth in vitro. In this study, we find that betacellulin (BTC), a member of the EGF family, plays important roles in the proliferation and differentiation of RPCs...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28922364/association-of-epicardial-adipose-tissue-with-serum-level-of-cystatin-c-in-type-2-diabetes
#13
Tomomi Murai, Noriko Takebe, Kan Nagasawa, Yusuke Todate, Riyuki Nakagawa, Rieko Nakano, Mari Hangai, Yutaka Hasegawa, Yoshihiko Takahashi, Kunihiro Yoshioka, Yasushi Ishigaki
OBJECTIVE: Accumulation of epicardial adipose tissue (EAT) is considered to be a cardiovascular risk factor independent from visceral adiposity, obesity, hypertension and diabetes. We explored the parameters related to EAT accumulation, aiming to clarify the novel pathophysiological roles of EAT in subjects with type 2 diabetes (T2DM). METHODS: We examined the laboratory values, including cystatinC, and surrogate markers used for evaluating atherosclerosis. EAT was measured as the sum of the adipose tissue area, obtained by plain computed tomography scans in 208 subjects with T2DM but no history of coronary artery disease...
2017: PloS One
https://www.readbyqxmd.com/read/28921872/first-line-therapy-with-dacomitinib-an-orally-available-pan-her-tyrosine-kinase-inhibitor-for-locally-advanced-or-metastatic-penile-squamous-cell-carcinoma-results-of-an-open-label-single-arm-single-center-phase-2-study
#14
A Necchi, S Lo Vullo, F Perrone, D Raggi, P Giannatempo, G Calareso, N Nicolai, L Piva, D Biasoni, M Catanzaro, T Torelli, S Stagni, E Togliardi, M Colecchia, A Busico, A Gloghini, A Testi, L Mariani, R Salvioni
OBJECTIVE: To harness the frontline therapy in advanced penile squamous cell carcinoma (PSCC), for which chemotherapy exerts moderate activity but poor efficacy. Dacomitinib is an irreversible, pan-epidermal growth factor receptor (HER) inhibitor. PATIENTS AND METHODS: In a phase 2 study (NCT01728233), patients received dacomitinib 45 mg/day, orally, continuously. Inclusion criteria were SCC histology, clinical stage N2-3 or M1 (TNM 2009), and no prior chemotherapy administration...
September 16, 2017: BJU International
https://www.readbyqxmd.com/read/28921862/efficacy-and-safety-of-the-addition-of-ertugliflozin-in-patients-with-type-2-diabetes-mellitus-inadequately-controlled-with-metformin-and-sitagliptin-the-vertis-sita2-placebo-controlled-randomized-study
#15
Samuel Dagogo-Jack, Jie Liu, Roy Eldor, Guillermo Amorin, Jeremy Johnson, Darcy Hille, Yuqin Liao, Susan Huyck, Gregory Golm, Steven G Terra, James P Mancuso, Samuel S Engel, Brett Lauring
AIMS: To assess ertugliflozin in patients with type 2 diabetes inadequately controlled on metformin and sitagliptin. MATERIALS AND METHODS: In this double-blind randomized study (NCT02036515), patients (glycated haemoglobin [HbA1c] 7.0-10.5% [53-91 mmol/mol] on metformin ≥1500 mg/day and sitagliptin 100 mg/day; estimated glomerular filtration rate [eGFR] ≥60 mL/min/1.73 m(2) ) were randomized to ertugliflozin 5 mg once-daily, 15 mg once-daily, or placebo. Primary efficacy endpoint was change from baseline in HbA1c at Week 26; treatment was continued until Week 52...
September 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28921624/pharmacodynamics-and-pharmacokinetics-of-ticagrelor-versus-clopidogrel-in-patients-with-acute-coronary-syndromes-and-chronic-kidney-disease
#16
Heyang Wang, Jing Qi, Yi Li, Yunbiao Tang, Chao Li, Jing Li, Yaling Han
BACKGROUND: Pivotal clinical trials found ticagrelor reduced ischemic complications to a greater extent than clopidogrel and what is more, the benefit gradually increased with the reduction on creatinine clearance. However, the underlying mechanisms remains poorly explored. METHODS: This is a single-center, prospective, randomized clinical trial involving 60 hospitalized P2Y12 inhibitor naïve patients with CKD (eGFR<60ml/min/1.73m(2) ) and NSTE-ACS. Eligible patients were randomly assigned in a 1:1 ratio to receive ticagrelor(180 mg loading dose, then 90 mg twice daily followed) or clopidogrel(600 mg loading dose, then 75 mg qd followed)...
September 15, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28921442/preparation-of-immunoliposomes-by-direct-coupling-of-antibodies-based-on-a-thioether-bond
#17
Raquel Petrilli, Josimar O Eloy, Robert J Lee, Renata F V Lopez
Drug delivery is of paramount importance, since the drug needs to be delivered to a specific site, in adequate concentration, avoiding degradation in order to provide therapeutic efficacy. Different nanocarriers have been used over the years for this purpose and liposomes are well-established systems due to the high biocompatibility and the possibility to vehiculate both hydrophilic and lipophilic drugs. In order to circumvent the rapid clearance by the reticuloendothelial system and to avoid the healthy cells exposure to the drug, long circulating liposomes containing polyethyleneglycol (PEG) and functionalized liposomes for targeted delivery have been developed...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28920960/long-noncoding-rna-egfr-as1-mediates-epidermal-growth-factor-receptor-addiction-and-modulates-treatment-response-in-squamous-cell-carcinoma
#18
Daniel S W Tan, Fui Teen Chong, Hui Sun Leong, Shen Yon Toh, Dawn P Lau, Xue Lin Kwang, Xiaoqian Zhang, Gopinath M Sundaram, Gek San Tan, Mei Mei Chang, Boon Tin Chua, Wan Teck Lim, Eng Huat Tan, Mei Kim Ang, Tony K H Lim, Prabha Sampath, Balram Chowbay, Anders J Skanderup, Ramanuj DasGupta, N Gopalakrishna Iyer
Targeting EGFR is a validated approach in the treatment of squamous-cell cancers (SCCs), although there are no established biomarkers for predicting response. We have identified a synonymous mutation in EGFR, c.2361G>A (encoding p.Gln787Gln), in two patients with head and neck SCC (HNSCC) who were exceptional responders to gefitinib, and we showed in patient-derived cultures that the A/A genotype was associated with greater sensitivity to tyrosine kinase inhibitors (TKIs) as compared to the G/A and G/G genotypes...
September 18, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28920466/annals-express-evaluation-of-common-paediatric-creatinine-based-glomerular-filtration-rate-gfr-estimating-equations-in-black-african-children-in-kwazulu-natal-south-africa
#19
Yashna Rampursat, Rajendra Bhimma, Elaene Naicker, Fozy Peer, Verena Gounden
Background The use of serum creatinine (S-Cr) equations for estimating glomerular filtration rate (GFR) is well known in adults and children. We evaluated the revised Schwartz creatinine based estimated GFR (eGFR) prediction equation in Black African children in KwaZulu-Natal, South Africa. Methods Review of medical records of all Black African patients aged 2-18 years old who have had GFR determined by intravenous Technetium-99m-diethylene-triamine-pentaacetate((9)(9)(m)Tc DTPA), for the period 1 January 2010 to 31 December 2014 at the Inkosi Albert Luthuli Central Hospital (IALCH), Durban, South Africa was performed...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28920100/a-urinary-fragment-of-mucin-1-subunit-%C3%AE-is-a-novel-biomarker-associated-with-renal-dysfunction-in-the-general-population
#20
Zhen-Yu Zhang, Susana Ravassa, Martin Pejchinovski, Wen-Yi Yang, Petra Zürbig, Begoña López, Fang-Fei Wei, Lutgarde Thijs, Lotte Jacobs, Arantxa González, Jens-Uwe Voigt, Peter Verhamme, Tatiana Kuznetsova, Javier Díez, Harald Mischak, Jan A Staessen
INTRODUCTION: Sequencing peptides included in the urinary proteome identifies the parent proteins and may reveal mechanisms underlying the pathophysiology of chronic kidney disease. METHODS: In 805 randomly recruited Flemish individuals (50.8% women; mean age, 51.1 years), we determined the estimated glomerular filtration rate (eGFR) from serum creatinine using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. We categorized eGFR according to the National Kidney Foundation Kidney Disease Outcomes Quality Initiative guideline...
September 2017: KI Reports
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