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https://www.readbyqxmd.com/read/29345196/surfactant-protein-c-dampens-inflammation-by-decreasing-jak-stat-activation-during-lung-repair
#1
Huiyan Jin, Andrzej K Ciechanowicz, Alanna R Kaplan, Lin Wang, Ping Xia Zhang, Yi-Chien Lu, Rachel E Tobin, Brooke A Tobin, Lauren Cohn, Caroline J Zeiss, Patty J Lee, Emanuela M Bruscia, Diane S Krause
Surfactant Protein C (SPC), a key component of pulmonary surfactant, also plays a role in regulating inflammation. SPC deficiency in patients and mouse models is associated with increased inflammation and delayed repair, but the key drivers of SPC-regulated inflammation in response to injury are largely unknown. This study focuses on a new mechanism of SPC as an anti-inflammatory molecule using SPC-TK/SPC-KO (surfactant protein C-thymidine kinase/surfactant protein C knockout) mice, which represent a novel sterile injury model that mimics clinical acute respiratory distress syndrome (ARDS)...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29339063/evolution-of-intravitreal-therapy-for-retinal-diseases-from-cmv-to-cnv-the-lxxiv-edward-jackson-memorial-lecture
#2
Daniel F Martin
PURPOSE: To present the evolution of intravitreal therapy for retinal diseases and its impact on clinical practice. DESIGN: Retrospective literature review and personal perspective. METHODS: Retrospective literature review and personal perspective. RESULTS: Pharmacotherapeutic advances in retinal disease have been remarkable over the last 25 years. Almost all of the new drugs developed have required intravitreal administration to be highly effective, leading to an exponential increase in the annual number of intravitreal injections given...
January 12, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29315221/introduction-of-exogenous-hsv-tk-suicide-gene-increases-safety-of-keratinocyte-derived-induced-pluripotent-stem-cells-by-providing-genetic-emergency-exit-switch
#3
Maciej Sułkowski, Paweł Konieczny, Paula Chlebanowska, Marcin Majka
Since their invention in 2006, induced Pluripotent Stem (iPS) cells remain a great promise for regenerative medicine circumventing the ethical issues linked to Embryonic Stem (ES) cell research. iPS cells can be generated in a patient-specific manner as an unlimited source of various cell types for in vitro drug screening, developmental biology studies and regenerative use. Having the capacity of differentiating into the cells of all three primary germ layers, iPS cells have high potential to form teratoma tumors...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29313585/cmv-pneumonitis-following-bendamustine-containing-chemotherapy
#4
Sumeet Vimal Kishor Singhania, Pujan Parikh, Sandeep Goyle
Bendamustine has been increasingly used for treatment of indolent lymphoma for the past few years. The data on safety profile of this drug is still emerging with the increasing use of this drug. The higher occurrence of CMV reactivation with this drug has been reported in few case reports only. We report a case of CMV penumonitis initially presenting as unexplained pyrexia which responded well to intravenous Ganciclovir. This case report re-iterates the suspicion of CMV reactivation in lymphoma patients receiving bendamustine who present with unexplained pyrexia or chest symptoms...
September 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29311455/-evaluation-of-the-safety-of-2-0-ganciclovir-eye-drops-for-hospital-preparation
#5
Hiroo Nakagawa, Yumi Matsumaru, Seiichi Nose, Hitoshi Sasaki, Takashi Kitahara
 The concentration of ganciclovir eye drops for hospital preparation was changed from 0.5% to 2.0% at the Nagasaki University Hospital from March 2015. We investigated the incidence of side effects in 12 patients using 2.0% ganciclovir eye drops and evaluated the cytotoxicity of 2.0% ganciclovir eye drops using cultured rabbit corneal cells in vitro. As a side effect of 2.0% ganciclovir eye drops, three patients exhibited an early feeling of transient stimulation. The 2.0% ganciclovir eye drops did not demonstrate cell cytotoxicity for cultured corneal cells after 5 min, but did after 10 min...
2018: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/29310343/cerebrospinal-fluid-real-time-quaking-induced-conversion-test-for-sporadic-creutzfeldt-jakob-disease-in-an-18-year-old-woman-a-case-report
#6
Yuan Yao, Xiaoping Dong, Hongzhi Guan, Qiang Lu
RATIONALE: Sporadic Creutzfeldt-Jakob disease (sCJD) mainly occurs in the elderly, with the peak age of onset ranging from 55 to 75 years. The symptoms of sCJD are not unique, and laboratory tests such as magnetic resonance imaging (MRI), electroencephalogram (EEG) and cerebrospinal fluid (CSF)14-3-3 protein have low sensitivity or specificity. Therefore, excluding treatable diseases and establishing a diagnosis could be difficult in young patients with suspected sCJD. Recently, real-time quaking-induced conversion (RT-QuIC) has been used in the diagnosis of sCJD, with more than 95% sensitivity and 100% specificity...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29306975/combination-of-mppa-pdt-and-hsv1-tk-gcv-gene-therapy-on-prostate-cancer
#7
Liming Liang, Wenxiang Bi, Weiwen Chen, Yani Lin, Yuanyuan Tian
We combined pyropheophorbide-a methyl ester, photodynamic therapy (MPPa-PDT), 670 ± 10 nm, 4 mW/cm2, with herpes simplex virus type 1 thymidine kinase/ganciclovir (HSV1-TK/GCV) to improve the therapeutic effect. We built HSV1-TK expression vector GV230-TK and we observed a bright green fluorescence under fluorescence microscope. It indicated the recombinant plasmid was transfected into PC-3M prostate cancer cells successfully. As the abundant glucose-regulated protein 78 (GRP78) promoter in PC-3M cells can cause active expression of HSV1-TK, cell protein was collected for western blot to determine the expression of HSV1-TK...
January 6, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29303514/depletion-of-s100a4-stromal-cells-does-not-prevent-hcc-development-but-reduces-the-stem-cell-like-phenotype-of-the-tumors
#8
Jingjing Jiao, Álvaro González, Heather L Stevenson, Mihai Gagea, Hikaru Sugimoto, Raghu Kalluri, Laura Beretta
There is a pressing need for the development of novel approaches to treat and prevent hepatocellular carcinoma (HCC). The S100 calcium-binding protein S100A4 is associated with poor prognosis and metastasis in several human cancers. In addition, a role for S100A4 in modulating cancer-initiating cells stemness properties was recently proposed in head and neck and gastric cancers. Whether S100A4+ stromal cells contribute to tumor onset remains, however, an unanswered question. To address that question, we generated a new mouse model allowing for the depletion of S100A4+ cells in a mouse model of HCC with stemness properties, by crossing mice with hepatic deletion of phosphatase and tensin homolog (PTEN) with mice expressing viral thymidine kinase under the control of S100A4 promoter...
January 5, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29297442/the-significance-of-cytomegalovirus-in-children-with-pneumonia-admitted-for-mechanical-ventilation
#9
P M Jeena, K Govender, R Parboosing, M Adhikari
BACKGROUND: The pathogenic role of cytomegalovirus (CMV) among children with pneumonia is not clear. OBJECTIVES AND DESIGN: We describe the outcome of children on mechanical ventilation with 'probable' CMV-related pneumonitis (CMV DNA polymerase chain reaction [PCR] positive as well as clinical and imaging features of CMV on ganciclovir) and children with pneumonia and CMV infection (CMV DNA PCR-positive without clinical and imaging features of CMV and not on ganciclovir therapy) at a paediatric intensive care unit in South Africa between 2011 and 2013...
December 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29285078/antiproliferative-effect-of-double-suicide-gene-delivery-mediated-by-polyamidoamine-dendrimers-in-human-tenon-s-capsule-fibroblasts
#10
Jin Yang, Liu Kun Shi, Hui Min Sun, Yan Ming Wang
The aim of the present study was to investigate the therapeutic potential of a double suicide gene, thymidine kinase (TK) combined with cytosine deaminase (CD), mediated by generation of 5-polyamidoamine dendrimers (G5-PAMAM-D) on human Tenon's capsule fibroblasts (HTFs) as an anti-scarring agent. The pAcGFP1-Hyg-TK-CD plasmid was transfected into HTFs, and reverse-transcription polymerase chain reaction (RT-PCR) was used to detect TK-CD expression. MTT cell proliferation assay was used to evaluate the cytotoxic effects of ganciclovir (GCV) and 5-flurocytosine (5-FC) on HTFs...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29283141/bilateral-disciform-keratitis-of-presumed-adenoviral-etiology
#11
Rana Altan-Yaycioglu, Serkan Poyraz
Adenoviral conjunctivitis may lead to subepithelial corneal infiltrates as a late complication. Herein, we aim to present a 19-year-old healthy female, who developed bilateral disciform keratitis three weeks after suffering adenoviral conjunctivitis. She presented with widespread subepithelial corneal infiltrates in addition to central corneal edema with white distinct border resembling immune stromal ring, as well as Descemet's folds and keratic precipitates in the central area. Following topical corticosteroid and ganciclovir for 10 days, her condition improved...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29279310/proliferating-ng2-cell-dependent-angiogenesis-and-scar-formation-alter-axon-growth-and-functional-recovery-after-spinal-cord-injury-in-mice
#12
Z C Hesp, R Y Yoseph, R Suzuki, C Wilson, A Nishiyama, D M McTigue
Spinal cord injury (SCI) induces a centralized fibrotic scar surrounded by a reactive glial scar at the lesion site. The origin of these scars is thought to be perivascular cells entering lesions on ingrowing blood vessels and reactive astrocytes, respectively. However, two NG2-expressing cell populations (pericytes and glia) also may influence scar formation. In the periphery, new blood vessel growth requires proliferating NG2+ pericytes; if also true in the CNS, then the fibrotic scar would depend on dividing NG2+ pericytes...
December 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29275833/efficacy-against-human-prostate-cancer-by-prostate-specific-membrane-antigen-specific-transforming-growth-factor-%C3%AE-insensitive-genetically-targeted-cd8-t-cells-derived-from-patients-with-metastatic-castrate-resistant-disease
#13
Qiang Zhang, Brian T Helfand, Benedito A Carneiro, Weijun Qin, Ximing J Yang, Chung Lee, Weipeng Zhang, Francis J Giles, Massimo Cristofanilli, Timothy M Kuzel
Current immunotherapy has limited efficacy on metastatic castrate-resistant prostate cancer (mCRPC). We therefore sought to improve the antitumor ability of mCRPC patient-derived CD8+ T-cells by the endowment of specificity to prostate-specific membrane antigen (PSMA) and insensitivity to immunosuppressant molecule transforming growth factor-β (TGF-ß) under the control of herpes simplex virus-1 thymidine kinase. CD8+ T-cells were collected by leukapheresis and cultured in a Food and Drug Administration-approved Cell Processing Work Station...
December 21, 2017: European Urology
https://www.readbyqxmd.com/read/29258454/atypical-acute-retinal-necrosis-accompanied-by-terson-s-syndrome-a-case-report
#14
Jong Young Lee, Dong Yoon Kim, Hye Jin Lee, Jin Ho Jeong, Sung Pyo Park, Jin Young Kim
BACKGROUND: Acute retinal necrosis (ARN) has characterized by panuveitis, vitritis, severe vaso-occlusive vasculitis, and diffuse necrotizing retinitis. There are no case reports on atypical ARN combined with Terson's syndrome. Herein, we report a case of ARN with atypical clinical features combined with Terson's syndrome that we successfully treated by intravitreal ganciclovir injection. CASE PRESENTATION: A 64-year-old man visited our eye clinic with a complaint of decreased visual acuity in his right eye...
December 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29237252/usefulness-of-valacyclovir-prophylaxis-for-cytomegalovirus-infection-after-anti-thymocyte-globulin-as-rejection-therapy
#15
Eun Jeong Ko, Ji Hyun Yu, Chul Woo Yang, Byung Ha Chung
Background/Aims: Anti-thymocyte globulin (ATG) treatment for acute T-cell mediated rejection (TCMR) can increase the risk of cytomegalovirus (CMV) infection. We aimed to evaluate the effect of valacyclovir prophylaxis against CMV infection after ATG administration as anti-rejection therapy. Methods: We retrospectively analyzed 55 kidney transplant recipients (KTRs) receiving ATG for steroid resistant TCMR. In all KTRs, we used intravenous ganciclovir during ATG injection...
December 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29228826/synthesis-physicochemical-properties-and-ocular-pharmacokinetics-of-thermosensitive-in-situ-hydrogels-for-ganciclovir-in-cytomegalovirus-retinitis-treatment
#16
Qiyue Wang, Chunmeng Sun, Bohui Xu, Jiasheng Tu, Yan Shen
Ganciclovir (GCV) is one of the most widely used antiviral drugs for the treatment of cytomegalovirus (CMV) retinitis. In this context, the aim of this study was to design in situ thermosensitive hydrogels for GCV ocular delivery by intravitreal injection to achieve sustained drug release behavior and improved ocular bioavailability in the treatment of CMV retinitis. A thermosensitive poly-(β-butyrolactone-co-lactic acid)-polyethylene glycol-poly (β-butyrolactone-co-lactic acid) (PBLA-PEG-PBLA) triblock copolymer was synthesized by ring-opening polymerization and characterization...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29228316/identification-of-a-critical-window-for-ganciclovir-induced-disruption-of-testicular-development-in-rats
#17
Katlyn Barp Meyer, Anderson Joel Martino Andrade, Amanda Caroline Venturelli, Diogo Henrique Kita, Dária Louise Barbosa Machado, Rafaela Adams Philipsen, Alluanan Adelson do Nascimento Silva, Isabelle Cantão, Davyson Moreira, Valdemiro Amaro da Silva Junior, Taiza Stumpp, Rosana Nogueira Morais
Ganciclovir (GCV) has been implicated in the development of testicular alterations. Exposure on gestational day (GD) 10 in rats induced permanent effects, including focal reduction or absence of germ cells (Sertoli cell-only tubules). Because the timing of exposure can be critical for testicular effects, we exposed rat dams to 300 mg/kg GCV (three 100mg/kg subcutaneous injections) on GD10, 14 and 19, when germ cells have high rates of migration, proliferation and are mitotically quiescent, respectively. Males exposed to GCV in utero on GD10 and 14 were evaluated for androgenization markers, serum and fecal androgens, and testicular histomorphometry at adulthood...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29226391/experience-with-leflunomide-as-treatment-and-as-secondary-prophylaxis-for-cytomegalovirus-infection-in-lung-transplant-recipients-a-case-series-and-review-of-the-literature
#18
Jose Tiago Silva, Virginia Pérez-González, Francisco López-Medrano, Rodrigo Alonso-Moralejo, Mario Fernández-Ruiz, Rafael San-Juan, Patricia Brañas, María Dolores Folgueira, José María Aguado, Alicia de Pablo-Gafas
Data concerning the use of leflunomide -a drug approved for rheumatoid arthritis with in vitro anti-cytomegalovirus (CMV) activity- in lung transplant (LT) recipients are scarce. We performed a single center retrospective study including LT recipients who received leflunomide for CMV infection or as secondary prophylaxis after viremia clearance. We also conducted a full systematic PubMed search until June 30, 2017. We identified 5 LT recipients in our center, plus 7 patients reported in the literature. All patients had previously received ganciclovir (GCV) and foscarnet, with drug-induced adverse effects described in 6 recipients (50%)...
December 11, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29213157/immunotherapy-and-gene-therapy-as-novel-treatments-for-cancer
#19
REVIEW
Martha Montserrat Rangel-Sosa, Estuardo Aguilar-Córdova, Augusto Rojas-Martínez
The immune system interacts closely with tumors during the disease development and progression to metastasis. The complex communication between the immune system and the tumor cells can prevent or promote tumor growth. New therapeutic approaches harnessing protective immunological mechanisms have recently shown very promising results. This is performed by blocking inhibitory signals or by activating immunological effector cells directly. Immune checkpoint blockade with monoclonal antibodies directed against the inhibitory immune receptors CTLA-4 and PD-1 has emerged as a successful treatment approach for patients with advanced melanoma...
September 30, 2017: Colombia Médica: CM
https://www.readbyqxmd.com/read/29206123/polymorphs-of-the-antiviral-drug-ganciclovir
#20
Roxana L Roque-Flores, Ilia A Guzei, Jivaldo do Rosario Matos, Lian Yu
Ganciclovir (GCV; systematic name: 2-amino-9-{[(1,3-dihydroxypropan-2-yl)oxy]methyl}-6,9-dihydro-1H-purin-6-one), C9H13N5O4, an antiviral drug for treating cytomegalovirus infections, has two known polymorphs (Forms I and II), but only the structure of the metastable Form II has been reported [Kawamura & Hirayama (2009). X-ray Struct. Anal. Online, 25, 51-52]. We describe a successful preparation of GCV Form I and its crystal structure. GCV is an achiral molecule in the sense that its individual conformers, which are generally chiral objects, undergo fast interconversion in the liquid state and cannot be isolated...
December 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
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