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Herpes simplex virus and t cells

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https://www.readbyqxmd.com/read/28409558/in-vitro-detection-of-cholangiocarcinoma-cells-using-a-fluorescent-protein-expressing-oncolytic-herpes-virus
#1
R J S Coelen, M J de Keijzer, R Weijer, V V Loukachov, J K Wiggers, F P J Mul, A C W A van Wijk, Y Fong, M Heger, T M van Gulik
Pathological confirmation is desired prior to high-risk surgery for suspected perihilar cholangiocarcinoma (PHC), but preoperative tissue diagnosis is limited by poor sensitivity of available techniques. This study aimed to validate whether a tumor-specific enhanced green fluorescent protein (eGFP)-expressing oncolytic virus could be used for cholangiocarcinoma (CC) cell detection. Extrahepatic CC cell lines SK-ChA-1, EGI-1, TFK-1 and control cells (primary human liver cells) were exposed to the oncolytic herpes simplex type 1 virus NV1066 for up to 24 h in adherent culture...
April 14, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28404844/intramuscular-immunization-of-mice-with-the-live-attenuated-herpes-simplex-virus-type-1-hsv-1-vaccine-strain-vc2-expressing-the-equine-herpesvirus-1-ehv-1-glycoprotein-d-gd-generates-anti-ehv-1-immune-responses-in-mice
#2
Shiliang A Liu, Brent A Stanfield, Vladimir N Chouljenko, Shan Naidu, Ingeborg Langohr, Fabio Del Piero, Jacqueline Ferracone, Alma A Roy, Konstantin G Kousoulas
Vaccination remains the best option to combat EHV-1 infection and several different strategies of vaccination have been investigated and developed over the past decades. Herein, we report that the live-attenuated Herpes Simplex Virus Type-1 (HSV-1) VC2 vaccine strain, which has been shown to be unable to enter into neurons and establish latency in mice, can be utilized as a vector for the heterologous expression of the Equine Herpesvirus-1 (EHV-1) glycoprotein D (gD), and that intramuscular immunization of mice resulted in strong anti-viral humoral and cellular immune responses...
April 12, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28378925/evaluation-of-recombinant-adenovirus-vaccines-based-on-glycoprotein-d-and-truncated-ul25-against-herpes-simplex-virus-type-2-in-mice
#3
Wei Liu, Yan Zhou, Ziyan Wang, Zeqiang Zhang, Qizhi Wang, Weiheng Su, Yan Chen, Yan Zhang, Feng Gao, Chunlai Jiang, Wei Kong
The high prevalence of herpes simplex virus 2 (HSV-2) infections in humans necessitates the development of a safe and effective vaccine that will need to induce vigorous T-cell responses to control the viral infection and transmission. We designed rAd-gD2rAd-gD2▵UL25rAd-▵UL25 to investigate whether recombinant replication-defective adenoviruses vaccine could induce specific T cell responses and protect mice against intravaginal HSV-2 challenge compared with FI-HSV-2. The recombinant adenovirus-based HSV-2 showed higher reductions in mortality and stronger antigen-specific T cell responses compared with FI-HSV-2 and the severity of genital lesions in the mice immunized with rAd-gD2▵UL25 was significantly decreased via eliciting IFN-γ-secreting T responses compared with rAd-gD2 and rAd-▵UL25 group in present study...
April 5, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28378806/fibroblast-growth-factor-2-drives-and-maintains-progressive-corneal-neovascularization-following-hsv-1-infection
#4
H R Gurung, M M Carr, K Bryant, A J Chucair-Elliott, D Jj Carr
Herpes simplex virus type 1 (HSV-1) infection of the cornea induces vascular endothelial growth factor A (VEGF-A)-dependent lymphangiogenesis that continues to develop well beyond the resolution of infection. Inflammatory leukocytes infiltrate the cornea and have been implicated to be essential for corneal neovascularization, an important clinically relevant manifestation of stromal keratitis. Here we report that cornea infiltrating leukocytes including neutrophils and T cells do not have a significant role in corneal neovascularization past virus clearance...
April 5, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28378566/immune-response-of-t-cells-during-herpes-simplex-virus-type-1-hsv-1-infection
#5
Jie Zhang, Huan Liu, Bin Wei
Herpes simplex virus type 1 (HSV-1), a neurotropic member of the alphaherpes virus family, is among the most prevalent and successful human pathogens. HSV-1 can cause serious diseases at every stage of life including fatal disseminated disease in newborns, cold sores, eye disease, and fatal encephalitis in adults. HSV-1 infection can trigger rapid immune responses, and efficient inhibition and clearance of HSV-1 infection rely on both the innate and adaptive immune responses of the host. Multiple strategies have been used to restrict host innate immune responses by HSV-1 to facilitate its infection in host cells...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28331843/curative-effect-of-hf10-on-liver-and-peritoneal-metastasis-mediated-by-host-antitumor-immunity
#6
Yoshihiro Hotta, Hideki Kasuya, Itzel Bustos, Yoshinori Naoe, Toru Ichinose, Maki Tanaka, Yasuhiro Kodera
BACKGROUND: HF10 is a highly attenuated type 1 herpes simplex virus (HSV) with proven effective oncolytic effect. Previous investigations have demonstrated that colon cancer mice model treated with HF10 not only had better survival but were also resistant to the reimplantation of the antitumor effect mediated by host antitumor immunity. Importantly, it has also been noted that in mice with antitumors implanted on both sides of the back, an injection of HF10 on only one side strongly restrains not only the injected antitumor but also the non-injected ones...
2017: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/28329211/therapeutic-vaccine-for-genital-herpes-simplex-virus-2-infection-findings-from-a-randomized-trial
#7
David I Bernstein, Anna Wald, Terri Warren, Kenneth Fife, Stephen Tyring, Patricia Lee, Nick Van Wagoner, Amalia Magaret, Jessica B Flechtner, Sybil Tasker, Jason Chan, Amy Morris, Seth Hetherington
Background.: Genital herpes simplex virus type 2 (HSV-2) infection causes recurrent lesions and frequent viral shedding. GEN-003 is a candidate therapeutic vaccine containing HSV-2 gD2ΔTMR and ICP4.2, and Matrix-M2 adjuvant. Methods.: Persons with genital herpes were randomized into three dose cohorts to receive three intramuscular doses 21 days apart of 10 µg, 30 µg, or 100 µg of GEN-003, antigens without adjuvant, or placebo. Participants obtained genital swabs twice-daily for HSV-2 detection and monitored genital lesions for 28-day periods at baseline and intervals after the last dose...
January 30, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28326624/current-status-of-clinical-trials-assessing-oncolytic-virus-therapy-for-urological-cancers
#8
REVIEW
Satoru Taguchi, Hiroshi Fukuhara, Yukio Homma, Tomoki Todo
Oncolytic virus therapy has recently been recognized as a promising new option for cancer treatment. Oncolytic viruses replicate selectively in cancer cells, thus killing them without harming normal cells. Notably, T-VEC (talimogene laherparepvec, formerly called OncoVEX(GM)(-)(CSF) ), an oncolytic herpes simplex virus type 1, was approved by the US Food and Drug Administration for the treatment of inoperable melanoma in October 2015, and was subsequently approved in Europe and Australia in 2016. The efficacies of many types of oncolytic viruses against urological cancers have been investigated in preclinical studies during the past decade, and some have already been tested in clinical trials...
March 21, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28326469/hsv-1-interaction-to-3-o-sulfated-heparan-sulfate-in-mouse-derived-drg-explant-and-profiles-of-inflammatory-markers-during-virus-infection
#9
Harsh Sharthiya, Chanmoly Seng, T H Van Kuppevelt, Vaibhav Tiwari, Michele Fornaro
The molecular mechanism of herpes simplex virus (HSV) entry and the associated inflammatory response in the nervous system remain poorly understood. Using mouse-derived ex vivo dorsal root ganglia (DRG) explant model and single cell neurons (SCNs), in this study, we provided a visual evidence for the expression of heparan sulfate (HS) and 3-O-sulfated heparan sulfate (3-OS HS) followed by their interactions with HSV-1 glycoprotein B (gB) and glycoprotein D (gD) during cell entry. Upon heparanase treatment of DRG-derived SCN, a significant inhibition of HSV-1 entry was observed suggesting the involvement of HS role during viral entry...
March 21, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28319448/rationale-and-design-of-a-phase-1-clinical-trial-to-evaluate-hsv-g207-alone-or-with-a-single-radiation-dose-in-children-with-progressive-or-recurrent-malignant-supratentorial-brain-tumors
#10
Alicia M Waters, James M Johnston, Alyssa T Reddy, John Fiveash, Avi Madan-Swain, Kara Kachurak, Asim K Bag, G Yancey Gillespie, James M Markert, Gregory K Friedman
Primary central nervous system tumors are the most common solid neoplasm of childhood and the leading cause of cancer-related death in pediatric patients. Survival rates for children with malignant supratentorial brain tumors are poor despite aggressive treatment with combinations of surgery, radiation, and chemotherapy, and survivors often suffer from damaging lifelong sequelae from current therapies. Novel innovative treatments are greatly needed. One promising new approach is the use of a genetically engineered, conditionally replicating herpes simplex virus (HSV) that has shown tumor-specific tropism and potential efficacy in the treatment of malignant brain tumors...
March 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28282487/establishment-of-multiplex-solid-phase-strip-pcr-test-for-detection-of-24-ocular-infectious-disease-pathogens
#11
Satoko Nakano, Sunao Sugita, Yasuhiro Tomaru, Ayumi Hono, Takako Nakamuro, Toshiaki Kubota, Hiroshi Takase, Manabu Mochizuki, Masayo Takahashi, Norio Shimizu
Purpose: To establish and evaluate a new multiplex solid-phase strip polymerase chain reaction (strip PCR) for concurrent detection of common ocular infectious disease pathogens. Methods: A new multiplex strip PCR was established to detect 24 common ocular infectious disease pathogens: herpes simplex virus (HSV) 1, HSV2, varicella-zoster virus (VZV), Epstein-Barr virus (EBV), cytomegalovirus (CMV), human herpes virus (HHV) 6, HHV7, HHV8, human T-cell lymphotropic virus (HTLV)-1, adenovirus, Mycobacterium tuberculosis, Treponema pallidum, Propionibacterium acnes (P...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28262533/acyclovir-resistant-herpes-simplex-virus-1-infection-early-after-allogeneic-hematopoietic-stem-cell-transplantation-with-t-cell-depletion
#12
Yu Akahoshi, Junya Kanda, Ayumu Ohno, Yusuke Komiya, Ayumi Gomyo, Jin Hayakawa, Naonori Harada, Kazuaki Kameda, Tomotaka Ugai, Hidenori Wada, Yuko Ishihara, Koji Kawamura, Kana Sakamoto, Miki Sato, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Shinichi Kako, Kimiyasu Shiraki, Yoshinobu Kanda
We previously reported that oral low-dose acyclovir (200 mg/day) for the prevention of herpes simplex virus (HSV) infections after allogenic hematopoietic stem cell transplantation (HSCT) is effective without the emergence of acyclovir-resistant HSV infections. However, HSV infections are of significant concern because the number of allogeneic HSCT with T-cell depletion, which is a risk factor of the emergence of drug-resistant HSV infections, has been increasing. We experienced a 25-year-old female who received allogenic HSCT from an unrelated donor with 1-antigen mismatch using anti-thymocyte globulin...
March 2, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28253733/rationale-and-design-of-a-phase-i-clinical-trial-to-evaluate-hsv-g207-alone-or-with-a-single-radiation-dose-in-children-with-progressive-or-recurrent-malignant-supratentorial-brain-tumors
#13
Alicia M Waters, James M Johnston, Alyssa T Reddy, John Fiveash, Avi Madan-Swain, Kara Kachurak, Asim K Bag, G Yancey Gillespie, James M Markert, Gregory K Friedman
Primary central nervous system tumors are the most common solid neoplasm of childhood and the leading cause of cancer related death in pediatric patients. Survival rates for children with malignant supratentorial brain tumors are poor despite aggressive treatment with combinations of surgery, radiation, and chemotherapy; and survivors often suffer from damaging lifelong sequelae from current therapies. Novel innovative treatments are greatly needed. One promising new approach is the use of a genetically engineered, conditionally replicating herpes simplex virus (HSV) that has shown tumor specific tropism and potential efficacy in the treatment of malignant brain tumors...
February 24, 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28249285/risk-factors-for-skin-infections-in-mycosis-fungoides
#14
Eve Lebas, Jorge E Arrese, Arjen F Nikkels
BACKGROUND: Mycosis fungoides (MF) is the most frequent type of primary cutaneous natural killer and T-cell lymphoma. MF-required immunosuppressive therapies and MF-related immunosuppressive characteristics render patients with MF more prone to infections. AIM: To describe the clinical features of cutaneous infections observed in MF patients. MATERIALS AND METHODS: A series of 56 MF patients were followed prospectively over 3 years and screened for cutaneous infections...
March 2, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28228587/prophylactic-herpes-simplex-virus-2-hsv-2-vaccines-adjuvanted-with-stable-emulsion-and-toll-like-receptor-9-agonist-induce-a-robust-hsv-2-specific-cell-mediated-immune-response-protect-against-symptomatic-disease-and-reduce-the-latent-viral-reservoir
#15
Michael T Hensel, Jason D Marshall, Michael R Dorwart, Darren S Heeke, Eileen Rao, Padmaja Tummala, Li Yu, Gary H Cohen, Roselyn J Eisenberg, Derek D Sloan
Several prophylactic vaccines targeting HSV-2 have failed in the clinic to demonstrate a sustained depression in viral shedding or protection from recurrences. Although these vaccines have generated high titers of neutralizing antibodies, their induction of robust CD8 T cells has largely been unreported, even though evidence for the importance of HSV-2 antigen-specific CD8 T cells is mounting in animal models and in translational studies involving subjects with active HSV-2-specific immune responses. We developed a subunit vaccine composed of the neutralizing antibody (nAb) targets gD and gB, the novel T cell antigen and tegument protein UL40, and we compared this to a whole-inactivated virus vaccine (FI-HSV-2)...
February 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28223815/antitumor-effects-of-oncolytic-herpes-simplex-virus-type-2-against-colorectal-cancer-in-vitro-and-in-vivo
#16
Lei Yin, Chunhong Zhao, Jixia Han, Zengjun Li, Yanan Zhen, Ruixue Xiao, Zhongfa Xu, Yanlai Sun
BACKGROUND: The incidence of colorectal cancer (CRC) is on the rise. Furthermore, late-stage diagnoses and limited efficacious treatment options make CRC a complex clinical challenge. Therefore, a new therapeutic regimen with a completely novel therapeutic mechanism is necessary for CRC. In the present study, the therapeutic efficacy of oncolytic herpes simplex virus type 2 (oHSV2) in CRC was assessed in vitro and in vivo. oHSV2 is an oncolytic agent derived from herpes simplex virus type 2 that encodes granulocyte-macrophage colony-stimulating factor...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28222752/dendritic-cells-macrophages-nk-and-cd8-t-lymphocytes-play-pivotal-roles-in-controlling-hsv-1-in-the-trigeminal-ganglia-by-producing-il1-beta-inos-and-granzyme-b
#17
Natália Lucinda, Maria Marta Figueiredo, Natália Lima Pessoa, Beatriz Senra Álvares da Silva Santos, Graciela Kunrath Lima, Arthur Molinari Freitas, Alexandre Magalhães Vieira Machado, Erna Geessien Kroon, Lis Ribeiro do Valle Antonelli, Marco Antônio Campos
BACKGROUND: Herpes simplex virus type 1 (HSV-1) cause not only mild symptoms but also blindness and encephalitis. It was previously shown that the immune response against HSV-1 occurs mainly in the trigeminal ganglia (TG) and that Toll-like receptors 2 and 9 (TLR2/9) are important in mediating this response. It was also demonstrated that iNOS (nitric oxide synthase) and interleukin 1 beta (IL-1β) play an essential role in the defense against HSV-1 infection. Importantly, the present work aimed to identify the primary cells responsible for iNOS and IL-1β production and search for other important molecules and cells that might or might not depend on TLR2/9 receptors to mediate the immune response against HSV-1...
February 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28196487/anti-hsv-2-activity-of-terminalia-chebula-retz-extract-and-its-constituents-chebulagic-and-chebulinic-acids
#18
Ajay Kesharwani, Suja Kizhiyedath Polachira, Reshmi Nair, Aakanksha Agarwal, Nripendra Nath Mishra, Satish Kumar Gupta
BACKGROUND: Development of new and effective therapeutics for sexually transmitted herpes simplex virus-2 (HSV-2) infection is important from public health perspective. With an aim to identify natural products from medicinal plants, in the present study, the potential of Terminalia chebula Retz was investigated for its activity against HSV-2. METHODS: Fruits of Terminalia chebula Retz were used to prepare 50% ethanolic extract. In addition, chebulagic acid and chebulinic acid both purified from T...
February 14, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28185626/prevalence-of-concomitant-acute-bacterial-meningitis-in-neonates-with-febrile-urinary-tract-infection-a-retrospective-cross-sectional-study
#19
Sowdhamini S Wallace, Danielle N Brown, Andrea T Cruz
OBJECTIVE: To describe the frequency of concomitant acute bacterial meningitis (ABM) in neonates with febrile urinary tract infection (UTI). STUDY DESIGN: This was a retrospective cross-sectional study from 2005 to 2013 of infants ≤30 days old evaluated in the emergency department of a quaternary care children's hospital with fever and laboratory-confirmed UTI. Definite ABM was defined as cerebrospinal fluid (CSF) culture with growth of pathogenic bacteria and probable ABM if pleocytosis with ≥ 20 white blood cell was present in an antibiotic-pretreated patient...
February 6, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28146109/the%C3%A2-characteristics%C3%A2-of%C3%A2-herpes%C3%A2-simplex%C3%A2-virus%C3%A2-type%C3%A2-1-infection%C3%A2-in%C3%A2-rhesus%C3%A2-macaques%C3%A2-and%C3%A2-the%C3%A2-associated-pathological%C3%A2-features
#20
Shengtao Fan, Hongzhi Cai, Xingli Xu, Min Feng, Lichun Wang, Yun Liao, Ying Zhang, Zhanlong He, Fengmei Yang, Wenhai Yu, Jingjing Wang, Jumin Zhou, Qihan Li
As one of the major pathogens for human herpetic diseases, herpes simplex virus type 1 (HSV1) causes herpes labialis, genital herpes and herpetic encephalitis. Our aim here was to investigate the infectious process of HSV1 in rhesus macaques and the pathological features induced during this infection. Clinical symptoms that manifested in the rhesus macaque during HSV1 infection included vesicular lesions and their pathological features. Viral distribution in the nervous tissues and associated pathologic changes indicated the typical systematic pathological processes associated with viral distribution of HSV1...
January 30, 2017: Viruses
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