Genital human papilloma virus HPV Vaccines Research

18:33 EDT 16th October 2018 | BioPortfolio

The oncolytic virus H101 combined with GNAQ siRNA-mediated knockdown reduces uveal melanoma cell viability.

Uveal melanoma (UM) is a severe human malignancy with a high mortality rate, as well as high metastasis and recurrence potential. The active mutation of G protein subunit alpha q (GNAQ) or G protein subunit alpha 11 (GNA11) is a major trigger for UM. Oncolytic adenovirus H101 (H101) is the first oncolytic virus approved for clinical applications in cancer therapy by the China Food and Drug Adminis...

Vector competence of Aedes bromeliae and Aedes vitattus mosquito populations from Kenya for chikungunya virus.

Kenya has experienced outbreaks of chikungunya in the past years with the most recent outbreak occurring in Mandera in the northern region in May 2016 and in Mombasa in the coastal region from November 2017 to February 2018. Despite the outbreaks in Kenya, studies on vector competence have only been conducted on Aedes aegypti. However, the role played by other mosquito species in transmission and ...

SNX8 modulates innate immune response to DNA virus by mediating trafficking and activation of MITA.

MITA (also called STING) is a central adaptor protein in innate immune response to cytosolic DNA. Cellular trafficking of MITA from the ER to perinuclear microsomes after DNA virus infection is critical for MITA activation and onset of innate antiviral response. Here we found that SNX8 is a component of DNA-triggered induction of downstream effector genes and innate immune response. Snx8-/- mice i...

Lymphoepithelioma-Like Carcinoma of the Uterine Cervix: A Pathologic Study of Eight Cases With Emphasis on the Association With Human Papillomavirus.

Lymphoepithelioma-like carcinoma (LELC) of the uterine cervix is a rare tumor. The goal of this study was to evaluate a series of cases of cervical LELC and to investigate possible association with human papillomavirus (HPV) and/or Epstein-Barr virus (EBV).

The Effects of Hepatitis C Infection and Treatment on All-cause Mortality Among People Living With Human Immunodeficiency Virus.

Persons living with human immunodeficiency virus (HIV; PLwH) are commonly co-infected with hepatitis C virus (HCV). Most co-infected individuals can achieve a sustained HCV virologic response after treatment with direct-acting antivirals (DAA). However, the effect of HCV co-infection and DAA treatment on mortality after initiating antiretroviral therapy (ART) is unknown for PLwH.

Human Papillomavirus And Human Cytomegalovirus Infection And Association With Prognosis In Primary Glioblastoma Patients Of Pakistan.

Glioblastoma (GBM) is the most common adult primary brain tumour. Human cytomegalovirus (HCMV) has been studied for the past decade and conflicting results have been reported with no conclusive role has yet been established. Human papillomavirus (HPV) is involved in the pathogenesis of many cancers and has high prevalence in cervical and oral cancer patients of Pakistan. The objective of our study...

Prostaglandin E2 facilitates Hepatitis B virus replication by impairing CTL function.

Reversal of T cell dysfunction is a novel and promising approach for the treatment of chronic diseases. PGE2, one of most studied Prostaglandins, exhibits strong and versatile immunoregulation activity on different immune cells including T cells, and has become a promising therapeutic target. Here we found that compared to healthy donors, patients with chronic Hepatitis B virus (HBV) infection had...

Generation of induced pluripotent stem cells (iPSCs) from human foreskin fibroblasts.

The human iPS cell line VUZUZLi001-A (hVH-1) was generated from human foreskin fibroblasts to be used as a control line. Reprogramming was performed by retroviral transduction of reprogramming factors OCT4, SOX2, KLF4 and c-MYC. Resource table.

Lamivudine prophylaxis prevents hepatitis B virus reactivation in anti-HBc positive patients under rituximab for non-Hodgkin lymphoma.

A significant proportion of hepatitis B surface antigen (HBsAg) negative/anti-hepatitis B core antigen (anti-HBc) positive patients with non-Hodgkin lymphoma (NHL) undergoing rituximab-based chemotherapy (R-CT) may suffer hepatitis B virus (HBV) reactivation.

Analysis of compositional bias and codon usage pattern of the coding sequence in Banna virus genome.

By using DNA Star, CUSP of EMBOSS, Codon W and IBM SPSS Statistics, nucleotide composition and codon usage pattern of 115 genes are researched in 37 BAVs. It shows that the composition of all genes prefers to AU, compared to CG, and for most of genes, the order is A, U, G and C in the virus. The ENC-values of the genes are slightly high which shows the weak codon bias, in which the codon bias of V...

Positive modulation of mGluR5 attenuates seizures and reduces TNF-α macrophages and microglia in the brain in a murine model of virus-induced temporal lobe epilepsy.

Viral encephalitis markedly increases the risk for the development of epilepsy. The Theiler's murine encephalomyelitis virus (TMEV)-induced model of seizures/epilepsy is a murine model of both viral-induced seizures/epilepsy and human Temporal Lobe Epilepsy. The inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-α have been shown to play a role in seizure development in the...

Host-based processes as therapeutic targets for Rift Valley fever virus.

Rift Valley fever virus (RVFV) is an enveloped, segmented, negative sense RNA virus that replicates within the host's cytoplasm. To facilitate its replication, RVFV must utilize host cell processes and as such, these processes may serve as potential therapeutic targets. This review summarizes key host cell processes impacted by RVFV infection. Specifically the influence of RVFV on host transcripti...

Effects of deletion at the TTTSTTT motif of Hibiscus latent Singapore virus coat protein on viral replication and long-distance movement.

Hibiscus latent Singapore virus (HLSV) mutant HLSV-22A could not express coat protein (CP) nor infect plants systemically (Niu et al., 2015). In this study, a serine- and threonine-rich motif TTTSTTT at the C-terminus of HLSV CP was found to be involved in virus replication and systemic movement. Deletion the last amino acid residue in HLSV-22A led to a more rapid virus replication, but with delay...

Unusual cause of fever, vision loss and super refractory status epilepticus in association with simian virus 40 (SV40).

We present a case of a 23-year-old man with history of fever followed by painless complete vision loss, with subsequent new-onset refractory status epilepticus (NORSE). He initially developed bilateral retinitis. A few days later, he started having focal seizures, and subsequently developed super-refractory status epilepticus, requiring anaesthetic agents. MRI brain revealed multifocal cortical an...

Fatty liver checkmates hepatitis B virus.

Low T-cell subsets prior to development of virus-associated cancer in HIV-seronegative men who have sex with men.

Immunological parameters that influence susceptibility to virus-associated cancers in HIV-seronegative individuals are unclear. We conducted a case-control cohort study of immunological parameters associated with development of incident virus-associated cancers among 532 HIV-seronegative men who have sex with men (MSM) enrolled in the Multicenter AIDS Cohort Study (MACS) with median (IQR) 21 (8-26...

Resistance to coronavirus infection in amino peptidase N-deficient pigs.

The alphacoronaviruses, transmissible gastroenteritis virus (TGEV) and Porcine epidemic diarrhea virus (PEDV) are sources of high morbidity and mortality in neonatal pigs, a consequence of dehydration caused by the infection and necrosis of enterocytes. The biological relevance of amino peptidase N (ANPEP) as a putative receptor for TGEV and PEDV in pigs was evaluated by using CRISPR/Cas9 to edit ...

Human genomics of acute liver failure due to hepatitis B virus infection: an exome sequencing study in liver transplant recipients.

Acute liver failure (ALF) or fulminant hepatitis is a rare, yet severe outcome of infection with hepatitis B virus (HBV) that carries a high mortality rate. The occurrence of a life-threatening condition upon infection with a prevalent virus in individuals without known risk factors is suggestive of pathogen-specific immune dysregulation. In the absence of established differences in HBV virulence,...

Generation and characterization of eight human-derived iPSC lines from affected and unaffected THAP1 mutation carriers.

Mutations in THAP1 (THAP domain-containing apoptosis-associated protein 1) cause a form of early-onset, isolated dystonia (DYT-THAP1, aka DYT6). Here, we describe the generation of eight human induced pluripotent stem cell (iPSC) lines of manifesting and non-manifesting carriers of the THAP1 mutations p.Lys158Asnfs*23 or p.Arg13His (each 4 lines). Dermal fibroblasts were reprogrammed using non-int...

Role of c-Jun terminal kinase (JNK) activation in influenza A virus-induced autophagy and replication.

The non-structural protein 1 (NS1) of different influenza A virus (IAV) strains can differentially regulate the activity of c-Jun terminal kinase (JNK) and PI-3 kinase (PI3K). Whether varying JNK and PI3K activation impacts autophagy and IAV replication differently remains uncertain. Here we report that H5N1 (A/mallard/Huadong/S/2005) influenza A virus induced functional autophagy, as evidenced by...

Epstein-Barr Virus and Grave's Disease.

Risk factors for HTLV-1 infection in Central Africa: A rural population-based survey in Gabon.

Human T-Lymphotropic Virus type 1 (HTLV-1) is a human oncoretrovirus that infects at least 5 to 10 million people worldwide and is associated with severe diseases. Africa appears as the largest HTLV-1 endemic area. However, the risk factors for the acquisition of HTLV-1 remain poorly understood in Central Africa.

Passive inhalation of dry powder influenza vaccine formulations completely protects chickens against H5N1 lethal viral challenge.

Bird to human transmission of high pathogenicity avian influenza virus (HPAIV) poses a significant risk of triggering a flu pandemic in the human population. Therefore, vaccination of susceptible poultry during an HPAIV outbreak might be the best remedy to prevent such transmissions. To this end, suitable formulations and an effective mass vaccination method that can be translated to field setting...

Biological relevance of Cytomegalovirus genetic variability in congenitally and postnatally infected children.

Human cytomegalovirus (HCMV) is the leading cause of congenital infections resulting in severe morbidity and mortality among infected children. Although the virus is highly polymorphic, particularly in genes contributing to immune evasion, the mechanisms underlying its genetic variability and pathogenicity are only partially understood.

Environmental Temperature and Case Fatality of Patients with Ebola Virus Disease in Sierra Leone and Liberia, 2014-2015: A Retrospective Cohort Study.

Fluid loss during Ebola virus disease (EVD) infections from gastrointestinal dysfunction leads to volume depletion. It is possible that high environmental temperatures may exacerbate volume depletion or interfere with the provision of medical care by providers in full personal protective equipment. We investigated the effect of environmental temperature on case fatality.

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