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feline stomatitis

Hongjing Zhao, Jian Ma, Yu Wang, Juanjuan Liu, Yizhi Shao, Jinglun Li, Guangshun Jiang, Mingwei Xing
Interferon has a broad-spectrum of antiviral effects and represents an ideal choice for the development of antiviral drugs. Nonetheless, information about alpha interferon (IFN-α) is vacant in Amur tiger (Panthera tigris altaica), an endangered species and indigenous to northeast Asia. Herein, 11 PtIFN-αs genes, which encoded proteins of 164-165 amino acids, were amplified. Afterwards, expression and purification were conducted in Escherichia coli. In physicochemical analysis, PtIFN-αs were shown to be highly sensitive to trypsin and remained stable despite changes in pH and temperature...
July 24, 2017: Developmental and Comparative Immunology
Eleonora Zucchelli, Monika Pema, Anna Stornaiuolo, Claudia Piovan, Cinzia Scavullo, Erica Giuliani, Sergio Bossi, Stefano Corna, Claudia Asperti, Claudio Bordignon, Gian-Paolo Rizzardi, Chiara Bovolenta
Lentiviral vectors (LVs) are a highly valuable tool for gene transfer currently exploited in basic, applied, and clinical studies. Their optimization is therefore very important for the field of vectorology and gene therapy. A key molecule for LV function is the envelope because it guides cell entry. The most commonly used in transiently produced LVs is the vesicular stomatitis virus glycoprotein (VSV-G) envelope, whose continuous expression is, however, toxic for stable LV producer cells. In contrast, the feline endogenous retroviral RD114-TR envelope is suitable for stable LV manufacturing, being well tolerated by producer cells under constitutive expression...
March 17, 2017: Molecular Therapy. Methods & Clinical Development
Anja D Hartmann, Natalie Wilhelm, Volker Erfle, Katrin Hartmann
OBJECTIVE: The bee venom melittin shows an antiviral efficacy against the human immunodeficiency virus in cell culture. It was shown to be non-toxic for cats. Aim of this pilot study was to investigate the clinical efficacy and side-effects of melittin in cats naturally infected with feline immunodeficiency virus (FIV). MATERIAL AND METHODS: The study was performed as a prospective, placebo-controlled double-blinded trial. Twenty cats were included, of which 10 cats each were treated with either melittin (500 µg/kg body weight) or phosphate-buffered saline (placebo) subcutaneously twice per week...
December 5, 2016: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
A L Proksch, K Hartmann
Paramunity inducers have been used to treat small animals for decades. Paramunity inducers are based on attenuated and inactivated poxviruses (avipox virus and parapox virus). Their applications include both therapeutic and prophylactic use in various diseases. Despite their wide and variable use, only a very small number of placebo-controlled studies has been published. Positive effects in preventing kitten mortality and in treating feline stomatitis have been reported, however, no statistically significant effect of their therapeutic use in canine parvovirus infection, feline leukemia infection virus infection or canine papillomavirus infection could be demonstrated...
2016: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
J Hou, F Sánchez-Vizcaíno, D McGahie, C Lesbros, T Almeras, D Howarth, V O'Hara, S Dawson, A D Radford
Feline calicivirus (FCV) causes a variable syndrome of upper respiratory tract disease, mouth ulcers and lameness. A convenience-based prospective sample of oropharyngeal swabs (n=426) was obtained from five countries (France, Germany, Greece, Portugal and the UK). The prevalence of FCV by virus isolation was 22.2 per cent. Multivariable analysis found that animals presenting with lymphoplasmacytic gingivitis stomatitis complex were more likely to test positive for FCV infection. Furthermore, vaccinated cats up to 48 months of age were significantly less likely to be infected with FCV than unvaccinated animals of similar ages...
January 30, 2016: Veterinary Record
Barbara Willi, Andrea M Spiri, Marina L Meli, Ayman Samman, Karolin Hoffmann, Titus Sydler, Valentino Cattori, Felix Graf, Kevin A Diserens, Isabelle Padrutt, Stefanie Nesina, Alice Berger, Maja Ruetten, Barbara Riond, Margaret J Hosie, Regina Hofmann-Lehmann
Feline calicivirus (FCV) infections are associated with oral ulceration, chronic stomatitis and a limping syndrome. Epizootic outbreaks of virulent systemic disease (VSD) have been reported in the USA and Europe. Here, the molecular characterization and neutralization patterns of FCV isolates from cases of severe, non-epizootic infection associated with skin ulceration and edema are presented. Samples from eleven symptomatic cats, four in-contact cats and 27 cats with no contact with symptomatic cats were collected and tested for FCV, feline herpesvirus-1 (FHV-1), feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV)...
January 15, 2016: Veterinary Microbiology
Alice Berger, Barbara Willi, Marina L Meli, Felicitas S Boretti, Sonja Hartnack, Anou Dreyfus, Hans Lutz, Regina Hofmann-Lehmann
BACKGROUND: Cats with feline calicivirus (FCV)-related symptoms are commonly presented to veterinary practitioners. Various clinical manifestations have been attributed to FCV, i.e. upper respiratory tract disease (URTD), oral ulcerations, gingivostomatitis, limping syndrome and virulent systemic disease. Additionally, healthy cats can shed FCV. The aims of this study were 1) to investigate the frequency of FCV in cats with FCV-related symptoms and in healthy cats in Switzerland, 2) to assess risk and protective factors for infection, such as signalment, housing conditions, vaccination, and co-infection with URTD-associated pathogens, and 3) to address the association between clinical symptoms and FCV infection...
2015: BMC Veterinary Research
Christine Burkard, Monique H Verheije, Bart L Haagmans, Frank J van Kuppeveld, Peter J M Rottier, Berend-Jan Bosch, Cornelis A M de Haan
UNLABELLED: In addition to transporting ions, the multisubunit Na(+),K(+)-ATPase also functions by relaying cardiotonic steroid (CTS)-binding-induced signals into cells. In this study, we analyzed the role of Na(+),K(+)-ATPase and, in particular, of its ATP1A1 α subunit during coronavirus (CoV) infection. As controls, the vesicular stomatitis virus (VSV) and influenza A virus (IAV) were included. Using gene silencing, the ATP1A1 protein was shown to be critical for infection of cells with murine hepatitis virus (MHV), feline infectious peritonitis virus (FIPV), and VSV but not with IAV...
April 2015: Journal of Virology
Christine Burkard, Monique H Verheije, Oliver Wicht, Sander I van Kasteren, Frank J van Kuppeveld, Bart L Haagmans, Lucas Pelkmans, Peter J M Rottier, Berend Jan Bosch, Cornelis A M de Haan
Enveloped viruses need to fuse with a host cell membrane in order to deliver their genome into the host cell. While some viruses fuse with the plasma membrane, many viruses are endocytosed prior to fusion. Specific cues in the endosomal microenvironment induce conformational changes in the viral fusion proteins leading to viral and host membrane fusion. In the present study we investigated the entry of coronaviruses (CoVs). Using siRNA gene silencing, we found that proteins known to be important for late endosomal maturation and endosome-lysosome fusion profoundly promote infection of cells with mouse hepatitis coronavirus (MHV)...
November 2014: PLoS Pathogens
Yi-Ping Hung, Yi-Ping Yang, Hsien-Chi Wang, Jiunn-Wang Liao, Wei-Li Hsu, Chao-Chin Chang, Shih-Chieh Chang
Feline lymphocytic-plasmacytic gingivitis/stomatitis (LPGS) or caudal stomatitis is an inflammatory disease that causes painfully erosive lesions and proliferations of the oral mucosa. The disease is difficult to cure and can affect cats at an early age, resulting in lifetime therapy. In this study, a new treatment using a combination of bovine lactoferrin (bLf) oral spray and oral piroxicam was investigated using a randomized double-blinded clinical trial in 13 cats with caudal stomatitis. Oral lesion grading and scoring of clinical signs were conducted during and after the trial to assess treatment outcome...
October 2014: Veterinary Journal
Iwona E Głowacka, Jan Balzarini, Graciela Andrei, Robert Snoeck, Dominique Schols, Dorota G Piotrowska
The efficient synthesis of a new series of polyhydroxylated dibenzyl ω-(1H-1,2,3-triazol-1-yl)alkylphosphonates as acyclic nucleotide analogues is described starting from dibenzyl ω-azido(polyhydroxy)alkylphosphonates and selected alkynes under microwave irradiation. Selected O,O-dibenzylphosphonate acyclonucleotides were transformed into the respective phosphonic acids. All compounds were evaluated in vitro for activity against a broad variety of DNA and RNA viruses and for cytostatic activity against murine leukemia L1210, human T-lymphocyte CEM and human cervix carcinoma HeLa cells...
July 15, 2014: Bioorganic & Medicinal Chemistry
Iwona E Głowacka, Jan Balzarini, Dorota G Piotrowska
A new series of 1-amino-3-(1H-1,2,3-triazol-1-yl)propylphosphonates (R)- and (S)-16 were obtained from enantiomerically pure (R)- and (S)-1-tert-butoxycarbonyl (Boc)-amino-3-azidopropylphosphonates and N-propargylated nucleobases in good yields. All 1,2,3-triazolylphosphonates (R)- and (S)-16 were evaluated for their activities against a broad range of DNA and RNA viruses. Compound (R)-16g (B = 3-acetylindole) was moderately active against vesicular stomatitis virus in HeLa cell cultures (EC50 = 45 µM). In addition, (S)-16c (B = adenine), (R)-16f (B = N(3)-Bz-benzuracil), (R)-16g (B = 3-acetylindole), and (R)-16h (B = 5,6-dimethylbenzimidazole) were cytotoxic toward Crandell-Rees feline kidney (CRFK) cells (CC50 = 2...
July 2014: Archiv der Pharmazie
Victor G Prikhodko, Carlos Sandoval-Jaime, Eugenio J Abente, Karin Bok, Gabriel I Parra, Igor B Rogozin, Eileen N Ostlund, Kim Y Green, Stanislav V Sosnovtsev
Feline calicivirus (FCV) is a common cause of mild to severe upper respiratory tract disease (URTD) in cats. FCV strain 21223 was isolated from a kitten with severe pneumonia in a disease outbreak with unusually high mortality (35 %) that occurred in a Missouri feline colony in 1995-1996. Phylogenetic analysis of the genome sequence of strain 21223 indicated the emergence of a new FCV strain. Analysis of the full-length genome sequence of a closely related (99.5 % nucleotide identity) strain, 3786, obtained from an asymptomatic animal in the same colony four months later, showed the presence of seven amino acid substitutions, with six of them located in the VP1 capsid sequence encoded by ORF2...
February 2014: Virus Genes
Jody D Ray, Dinah G Jordan, Diana L Eubanks, Megan E Crosswhite
A three-year old spayed female Domestic Shorthair was diagnosed with chronic plasmacytic stomatitis involving the mandibular gingiva caudal to the canine teeth. The cat presented with excessive drooling and bleeding from the gums. The definitive diagnosis was made on oral tissue samples obtained by biopsy and submitted for histopathology. The management included bilateral extraction of the mandibular and maxillary premolars and molars with closure of the defects utilizing a single mucosal flap in each quadrant...
September 2009: International Journal of Pharmaceutical Compounding
Yoshikazu Tanaka, Yuka Sato, Takashi Sasaki
Coronaviruses infect a variety of mammalian and avian species and cause serious diseases in humans, cats, mice, and birds in the form of severe acute respiratory syndrome (SARS), feline infectious peritonitis (FIP), mouse hepatitis, and avian infectious bronchitis, respectively. No effective vaccine or treatment has been developed for SARS-coronavirus or FIP virus, both of which cause lethal diseases. It has been reported that a cyclophilin inhibitor, cyclosporin A (CsA), could inhibit the replication of coronaviruses...
May 2013: Viruses
Kyoko Ueda, Ryoko Kawabata, Takashi Irie, Yoshiaki Nakai, Yukinobu Tohya, Takemasa Sakaguchi
Tannins, plant-derived polyphenols and other related compounds, have been utilized for a long time in many fields such as the food industry and manufacturing. In this study, we investigated the anti-viral effects of tannins on 12 different viruses including both enveloped viruses (influenza virus H3N2, H5N3, herpes simplex virus-1, vesicular stomatitis virus, Sendai virus and Newcastle disease virus) and non-enveloped viruses (poliovirus, coxsachievirus, adenovirus, rotavirus, feline calicivirus and mouse norovirus)...
2013: PloS One
Mayumi Oakland, Wendy Maury, Paul B McCray, Patrick L Sinn
Persistent viral vector-mediated transgene expression in the airways requires delivery to cells with progenitor capacity and avoidance of immune responses. Previously, we observed that GP64-pseudotyped feline immunodeficiency virus (FIV)-mediated gene transfer was more efficient in the nasal airways than the large airways of the murine lung. We hypothesized that in vivo gene transfer was limited by immunological and physiological barriers in the murine intrapulmonary airways. Here, we systematically investigate multiple potential barriers to lentiviral gene transfer in the airways of mice...
2013: Molecular Therapy. Nucleic Acids
Bianca Stuetzer, Konstanze Brunner, Hans Lutz, Katrin Hartmann
Feline leukaemia virus (FeLV) infection is still one of the leading causes of infection-related deaths in domestic cats. Treatment with various drugs has been attempted, but none has resulted in cure or complete virus elimination. Human interferon-α2a (huIFN-α2a) and 3'-azido-2',3'-dideoxythymidine (AZT) have been proven to decrease antigenaemia in cats infected experimentally with FeLV. The purpose of this study was to assess the efficacy of huIFN-α2a, AZT and a combination of both drugs in cats infected naturally with FeLV in a placebo-controlled double-blinded trial...
August 2013: Journal of Feline Medicine and Surgery
Sanne Maria Johanna Dolieslager, David Francis Lappin, David Bennett, Libby Graham, Norman Johnston, Marcello Pasquale Riggio
Feline chronic gingivostomatitis (FCGS) is an inflammatory disease of the oral cavity that causes severe pain and distress in affected cats. Treatment methods are currently very limited. The aims of this study were to assess the feline innate immune response by investigating the levels of cytokine and Toll-like receptor (TLR) mRNAs in tissue biopsies of cats with and without FCGS, and to relate this to the presence or absence of putative oral pathogens identified previously within these cats. Mucosal biopsies were collected from 28 cats with FCGS and eight healthy cats...
February 15, 2013: Veterinary Immunology and Immunopathology
Hiromi Sasaki, Yasuaki Ichikawa, Yoshimi Sakata, Yasuyuki Endo, Kazuo Nishigaki, Kotaro Matsumoto, Hisashi Inokuma
The prevalence of Rickettsia, Ehrlichia, and Anaplasma in 1764 DNA samples extracted from feline peripheral blood from all 47 prefectures in Japan was evaluated by screening real-time PCR, genus-specific PCR, and DNA nucleotide sequencing. The survey revealed that all cats were negative for Rickettsia infection. Two cats were positive for Ehrlichia or Anaplasma based on the screening PCR assay. Nucleotide sequence analysis of the partial 16S rRNA including the divergent region near the 3'-end revealed that the 2 positives were most similar to Anaplasma bovis with percent identities of 99...
December 2012: Ticks and Tick-borne Diseases
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