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Zannella C, Chianese A, Annunziata G, Ambrosino A, De Filippis A, Tenore GC, Novellino E, Stornaiuolo M, Galdiero M. Antiherpetic Activity of Taurisolo ®, a Grape Pomace Polyphenolic Extract. Microorganisms 2023; 11:1346. [PMID: 37317320 DOI: 10.3390/microorganisms11051346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 06/16/2023] Open
Abstract
Herpes simplex virus (HSV) is widespread in the population, causing oral or genital ulcers and, rarely, severe complications such as encephalitis, keratitis, and neonatal herpes. Current available anti-HSV drugs are acyclovir and its derivatives, although long-term therapy with these agents can lead to drug resistance. Thus, the discovery of novel antiherpetic compounds merits additional studies. In recent decades, much scientific effort has been invested in the discovery of new synthetic or natural compounds with promising antiviral properties. In our study, we tested the antiviral potential of a novel polyphenol-based nutraceutical formulation (named Taurisolo®) consisting of a water polyphenol extract of grape pomace. The evaluation of the antiviral activity was carried out by using HSV-1 and HSV-2 in plaque assay experiments to understand the mechanism of action of the extract. Results were confirmed by real-time PCR, transmission electron microscope (TEM), and fluorescence microscope. Taurisolo® was able to block the viral infection by acting on cells when added together with the virus and also when the virus was pretreated with the extract, demonstrating an inhibitory activity directed to the early phases of HSV-1 and HSV-2 infection. Altogether, these data evidence for the first time the potential use of Taurisolo® as a topical formulation for both preventing and healing herpes lesions.
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Affiliation(s)
- Carla Zannella
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Annalisa Chianese
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Giuseppe Annunziata
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Annalisa Ambrosino
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Anna De Filippis
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Gian Carlo Tenore
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Ettore Novellino
- Department of Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Mariano Stornaiuolo
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
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2
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Cobb DA, Smith N, Deodhar S, Bade AN, Gautam N, Shetty BLD, McMillan J, Alnouti Y, Cohen SM, Gendelman HE, Edagwa B. Transformation of tenofovir into stable ProTide nanocrystals with long-acting pharmacokinetic profiles. Nat Commun 2021; 12:5458. [PMID: 34531390 PMCID: PMC8445934 DOI: 10.1038/s41467-021-25690-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/20/2021] [Indexed: 02/08/2023] Open
Abstract
Treatment and prevention of human immunodeficiency virus type one (HIV-1) infection was transformed through widespread use of antiretroviral therapy (ART). However, ART has limitations in requiring life-long daily adherence. Such limitations have led to the creation of long-acting (LA) ART. While nucleoside reverse transcriptase inhibitors (NRTI) remain the ART backbone, to the best of our knowledge, none have been converted into LA agents. To these ends, we transformed tenofovir (TFV) into LA surfactant stabilized aqueous prodrug nanocrystals (referred to as NM1TFV and NM2TFV), enhancing intracellular drug uptake and retention. A single intramuscular injection of NM1TFV, NM2TFV, or a nanoformulated tenofovir alafenamide (NTAF) at 75 mg/kg TFV equivalents to Sprague Dawley rats sustains active TFV-diphosphate (TFV-DP) levels ≥ four times the 90% effective dose for two months. NM1TFV, NM2TFV and NTAF elicit TFV-DP levels of 11,276, 1,651, and 397 fmol/g in rectal tissue, respectively. These results are a significant step towards a LA TFV ProTide.
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Affiliation(s)
- Denise A Cobb
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Nathan Smith
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Suyash Deodhar
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Aditya N Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Bhagya Laxmi Dyavar Shetty
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Samuel M Cohen
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
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3
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Current Drugs to Treat Infections with Herpes Simplex Viruses-1 and -2. Viruses 2021; 13:v13071228. [PMID: 34202050 PMCID: PMC8310346 DOI: 10.3390/v13071228] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/11/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022] Open
Abstract
Herpes simplex viruses-1 and -2 (HSV-1 and -2) are two of the three human alphaherpesviruses that cause infections worldwide. Since both viruses can be acquired in the absence of visible signs and symptoms, yet still result in lifelong infection, it is imperative that we provide interventions to keep them at bay, especially in immunocompromised patients. While numerous experimental vaccines are under consideration, current intervention consists solely of antiviral chemotherapeutic agents. This review explores all of the clinically approved drugs used to prevent the worst sequelae of recurrent outbreaks by these viruses.
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4
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Fang L, Gao Y, Lan M, Jiang P, Bai J, Li Y, Wang X. Hydroquinone inhibits PRV infection in neurons in vitro and in vivo. Vet Microbiol 2020; 250:108864. [PMID: 33007606 DOI: 10.1016/j.vetmic.2020.108864] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/20/2020] [Indexed: 11/16/2022]
Abstract
Pseudorabies virus (PRV) is a prevalent and endemic swine pathogen that causes significant economic losses in the global swine industry. Due to the emergence of PRV mutant strains in recent years, vaccines can't completely prevent and control PRV infection. Therefore, research and development of new vaccines and drugs with inhibitory effects on PRV are of great significance in the prevention and treatment of PR. In this study, we firstly screened a library of 44 FDA-approved drugs and found that hydroquinone (HQ) displayed high anti-PRV activity by inhibiting PRV adsorption onto and internalization into cells. This study revealed that hydroquinone treatment stimulated genes associated with the PI3K-AKT signal pathway. HQ increased AKT mRNA production and activated AKT phosphorylation in N2a cells. This finding suggests that HQ significantly inhibits PRV replication by activating the phosphorylation of AKT. We also conducted in vivo experiments in mice. Hydroquinone significantly reduced the viral loads in mouse tissues and the mortality after PRV infection. The above results indicate that hydroquinone significantly inhibits the replication of PRV mutant strain ZJ01 in ICR mice and has an inhibitory effect on PRV. This study will contribute to the development of a novel prophylactic and therapeutic strategy against PRV infection.
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Affiliation(s)
- Linlin Fang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanni Gao
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Min Lan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Yufeng Li
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - XianWei Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China.
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5
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Smith N, Bade AN, Soni D, Gautam N, Alnouti Y, Herskovitz J, Ibrahim IM, Wojtkiewicz MS, Dyavar Shetty BL, McMillan J, Gendelman HE, Edagwa B. A long acting nanoformulated lamivudine ProTide. Biomaterials 2019; 223:119476. [PMID: 31525692 DOI: 10.1016/j.biomaterials.2019.119476] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 01/15/2023]
Abstract
A long acting (LA) hydrophobic and lipophilic lamivudine (3TC) was created as a phosphoramidate pronucleotide (designated M23TC). M23TC improved intracellular delivery of active triphosphate metabolites and enhanced antiretroviral and pharmacokinetic (PK) profiles over the native drug. A single treatment of human monocyte derived macrophages (MDM) with nanoformulated M23TC (NM23TC) improved drug uptake, retention, intracellular 3TC triphosphates and antiretroviral activities in MDM and CD4+ T cells. PK tests of NM23TC administered to Sprague Dawley rats demonstrated sustained prodrug and drug triphosphate levels in blood and tissues for 30 days. The development of NM23TC remains a substantive step forward in producing LA slow effective release antiretrovirals for future clinical translation.
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Affiliation(s)
- Nathan Smith
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Aditya N Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Dhruvkumar Soni
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jonathan Herskovitz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ibrahim M Ibrahim
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Melinda S Wojtkiewicz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Bhagya Laxmi Dyavar Shetty
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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6
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Soni D, Bade AN, Gautam N, Herskovitz J, Ibrahim IM, Smith N, Wojtkiewicz MS, Dyavar Shetty BL, Alnouti Y, McMillan J, Gendelman HE, Edagwa BJ. Synthesis of a long acting nanoformulated emtricitabine ProTide. Biomaterials 2019; 222:119441. [PMID: 31472458 DOI: 10.1016/j.biomaterials.2019.119441] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/04/2019] [Accepted: 08/19/2019] [Indexed: 01/20/2023]
Abstract
While antiretroviral therapy (ART) has revolutionized treatment and prevention of human immunodeficiency virus type one (HIV-1) infection, regimen adherence, viral mutations, drug toxicities and access stigma and fatigue are treatment limitations. These have led to new opportunities for the development of long acting (LA) ART including implantable devices and chemical drug modifications. Herein, medicinal and formulation chemistry were used to develop LA prodrug nanoformulations of emtricitabine (FTC). A potent lipophilic FTC phosphoramidate prodrug (M2FTC) was synthesized then encapsulated into a poloxamer surfactant (NM2FTC). These modifications extended the biology, apparent drug half-life and antiretroviral activities of the formulations. NM2FTC demonstrated a >30-fold increase in macrophage and CD4+ T cell drug uptake with efficient conversion to triphosphates (FTC-TP). Intracellular FTC-TP protected macrophages against an HIV-1 challenge for 30 days. A single intramuscular injection of NM2FTC, at 45 mg/kg native drug equivalents, into Sprague Dawley rats resulted in sustained prodrug levels in blood, liver, spleen and lymph nodes and FTC-TP in lymph node and spleen cells at one month. In contrast, native FTC-TPs was present for one day. These results are an advance in the transformation of FTC into a LA agent.
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Affiliation(s)
- Dhruvkumar Soni
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Aditya N Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jonathan Herskovitz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ibrahim M Ibrahim
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Nathan Smith
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Melinda S Wojtkiewicz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Bhagya Laxmi Dyavar Shetty
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Howard E Gendelman
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Benson J Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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7
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Lin Z, Gautam N, Alnouti Y, McMillan J, Bade AN, Gendelman HE, Edagwa B. ProTide generated long-acting abacavir nanoformulations. Chem Commun (Camb) 2018; 54:8371-8374. [PMID: 29995046 PMCID: PMC6063073 DOI: 10.1039/c8cc04708a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 07/02/2018] [Indexed: 12/18/2022]
Abstract
Abacavir pronucleotide nanoformulations (NM3ABC) were prepared as a novel long acting slow effective release antiretroviral therapy. Single NM3ABC treatment of human monocyte-derived macrophages produced sustained intracellular carbovir-triphosphate and antiretroviral activities for up to 30 days.
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Affiliation(s)
- Zhiyi Lin
- Department of Pharmacology and Experimental Neuroscience
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
.
;
- Department of Pharmaceutical Science
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Science
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Science
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
.
;
| | - Aditya N. Bade
- Department of Pharmacology and Experimental Neuroscience
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
.
;
| | - Howard E. Gendelman
- Department of Pharmacology and Experimental Neuroscience
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
.
;
- Department of Pharmaceutical Science
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience
, University of Nebraska Medical Center
,
Omaha
, NE 68198-5880
, USA
.
;
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8
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Maeda N, Furukawa A, Kakita K, Anada M, Hashimoto S, Matsunaga S, Kuroki K, Ose T, Kato A, Arii J, Kawaguchi Y, Arase H, Maenaka K. Rapid Screening by Cell-Based Fusion Assay for Identifying Novel Antivirals of Glycoprotein B-Mediated Herpes Simplex Virus Type 1 Infection. Biol Pharm Bull 2017; 39:1897-1902. [PMID: 27803463 DOI: 10.1248/bpb.b16-00533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) is a causative agent for a variety of diseases. Although antiherpetic drugs such as acyclovir have been developed to inhibit virus replication through interaction with DNA kinases, their continuous administration leads to an increase in the frequency of drug-resistant HSV-1, which is an important clinical issue that requires urgent solution. Recently, we reported that the sialylated O-linked sugar T antigen (sTn) and its attached peptide region (O-glycosylated sTn peptide) derived from the HSV-1 glycoprotein B (gB) protein inhibited HSV-1 infection by specifically targeting paired immunoglobulin-like type 2 receptor alpha (PILRα) in vitro. In this study, to further identify novel inhibitors of gB-mediated HSV-1 infection in vitro, we established a cell-based fusion assay for rapid drug screening. Chinese hamster ovary (CHO) cells were transfected with expression plasmids for HSV-1 gB, gD, gH, and gL, and T7 RNA polymerase, and were designated as the effector cells. The CHO-K1 cells stably expressing PILRα were transfected with the expression plasmid for firefly luciferase under the T7 promoter, and were designated as the target cells. The effector and target cells were co-cultured, and luminescence was measured when both cells were successfully fused. Importantly, we found that cell-to-cell fusion was specifically inhibited by O-glycosylated sTn peptide in a dose dependent manner. Our results suggested that this virus-free cell-based fusion assay system could be a useful and promising approach to identify novel inhibitors of gB-mediated HSV-1 infection, and will aid in the development of antiviral therapeutic strategies for HSV-1-associated diseases.
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Affiliation(s)
- Naoyoshi Maeda
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University
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9
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Rezeng C, Yuan D, Long J, Suonan D, Yang F, Li W, Tong L, Jiumei P. Alantolactone exhibited anti-herpes simplex virus 1 (HSV-1) action in vitro. Biosci Trends 2016; 9:420-2. [PMID: 26781801 DOI: 10.5582/bst.2015.01171] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study was to determine the inhibitory action of alantolactone, a gradient of traditional Chinese medicine Inulae Radix (Tu-Mu-Xiang), on herpes simplex virus 1 (HSV-1). African green monkey kidney cells (Vero cells) were infected with HSV-1 and the protective effects of alantolactone on Vero cells were examined. At concentrations of 10(-6), 10(-7), and 10(-8) g/mL, alantolactone did not have a marked harmful effect on the viability of Vero cells according to an MTT assay. Based on the cytopathic effect (CPE) and MTT assays, alantolactone at these concentrations exhibited antiviral action and protected cells from being damaged by HSV-1. Results indicated that alantolactone had potent anti-HSV-1 action and provided evidence for use of Inulae Radix in the treatment of HSV-1 infection.
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Affiliation(s)
- Caidan Rezeng
- Traditional Chinese and Tibetan Medicine of Medical College, Qinghai University
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10
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Büyükgüzel E, Büyükgüzel K. Effects of Antiviral Agent, Acyclovir, on the Biological Fitness of Galleria mellonella (Lepidoptera: Pyralidae) Adults. JOURNAL OF ECONOMIC ENTOMOLOGY 2016; 109:2090-2095. [PMID: 27515595 DOI: 10.1093/jee/tow174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
The effects of a synthetic purine nucleoside analog, antiviral agent, acyclovir (ACV), on adult longevity, fecundity, and hatchability of a serious honeycomb pest, greater wax moth Galleria mellonella L. were investigated by adding 0.01, 0.1, 1.0, and 3.0% ACV into artificial and natural diets. Control larvae were reared on diet without ACV. The artificial diet containing the lowest level of ACV, 0.01%, raised egg production from a number of 12.9 ± 0.6 to 163.2 ± 1.3. The hatching rate of these eggs was increased from 49.2 ± 2.4% to 68.2 ± 3.2%. Higher concentrations of ACV in natural food significantly increased both egg production and egg hatching rate. Female reared on old dark combs as natural diet exposed to 1.0% of ACV produced 167.5 ± 5.8 eggs with 93.2 ± 6.8% hatched. This study emphasizes the importance of determining the dietary impact of an antimicrobial agent as a food additive to a particular species of insect before its using for dietary antimicrobial purpose.
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Affiliation(s)
- Ender Büyükgüzel
- Department of Molecular Biology and Genetics, Faculty of Science and Arts, Bülent Ecevit University, Zonguldak, 67100, Turkey
| | - Kemal Büyükgüzel
- Department of Biology, Faculty of Science and Arts, Bülent Ecevit University, Zonguldak, 67100, Turkey
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11
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Panday A, Inda ME, Bagam P, Sahoo MK, Osorio D, Batra S. Transcription Factor NF-κB: An Update on Intervention Strategies. Arch Immunol Ther Exp (Warsz) 2016; 64:463-483. [PMID: 27236331 DOI: 10.1007/s00005-016-0405-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 04/14/2016] [Indexed: 12/25/2022]
Abstract
The nuclear factor (NF)-κB family of transcription factors are ubiquitous and pleiotropic molecules that regulate the expression of more than 150 genes involved in a broad range of processes including inflammation, immunity, cell proliferation, differentiation, and survival. The chronic activation or dysregulation of NF-κB signaling is the central cause of pathogenesis in many disease conditions and, therefore, NF-κB is a major focus of therapeutic intervention. Because of this, understanding the relationship between NF-κB and the induction of various downstream signaling molecules is imperative. In this review, we provide an updated synopsis of the role of NF-κB in DNA repair and in various ailments including cardiovascular diseases, HIV infection, asthma, herpes simplex virus infection, chronic obstructive pulmonary disease, and cancer. Furthermore, we also discuss the specific targets for selective inhibitors and future therapeutic strategies.
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Affiliation(s)
- Arvind Panday
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA.,Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Maria Eugenia Inda
- Departamento de Microbiología, CONICET, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional Rosario, Suipacha 531, Santa Fe, Argentina
| | - Prathyusha Bagam
- Laboratory of Pulmonary Immunotoxicology, Environmental Toxicology PhD Program, 207 Health Research Center, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Malaya K Sahoo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94304, USA
| | - Diana Osorio
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Sanjay Batra
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA. .,Laboratory of Pulmonary Immunotoxicology, Environmental Toxicology PhD Program, 207 Health Research Center, Southern University and A&M College, Baton Rouge, LA, 70813, USA.
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12
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Hung PY, Ho BC, Lee SY, Chang SY, Kao CL, Lee SS, Lee CN. Houttuynia cordata targets the beginning stage of herpes simplex virus infection. PLoS One 2015; 10:e0115475. [PMID: 25643242 PMCID: PMC4314066 DOI: 10.1371/journal.pone.0115475] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 11/24/2014] [Indexed: 11/18/2022] Open
Abstract
Herpes simplex virus (HSV), a common latent virus in humans, causes certain severe diseases. Extensive use of acyclovir (ACV) results in the development of drug-resistant HSV strains, hence, there is an urgent need to develop new drugs to treat HSV infection. Houttuynia cordata (H. cordata), a natural herbal medicine, has been reported to exhibit anti-HSV effects which is partly NF-κB-dependent. However, the molecular mechanisms by which H. cordata inhibits HSV infection are not elucidated thoroughly. Here, we report that H. cordata water extracts (HCWEs) inhibit the infection of HSV-1, HSV-2, and acyclovir-resistant HSV-1 mainly via blocking viral binding and penetration in the beginning of infection. HCWEs also suppress HSV replication. Furthermore, HCWEs attenuate the first-wave of NF-κB activation, which is essential for viral gene expressions. Further analysis of six compounds in HCWEs revealed that quercetin and isoquercitrin inhibit NF-κB activation and additionally, quercetin also has an inhibitory effect on viral entry. These results indicate that HCWEs can inhibit HSV infection through multiple mechanisms and could be a potential lead for development of new drugs for treating HSV.
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MESH Headings
- Acyclovir/pharmacology
- Animals
- Antiviral Agents/isolation & purification
- Antiviral Agents/pharmacology
- Cell Line
- Drug Resistance, Viral/drug effects
- Gene Expression Regulation, Viral/drug effects
- Herpesvirus 1, Human/drug effects
- Herpesvirus 1, Human/genetics
- Herpesvirus 1, Human/metabolism
- Herpesvirus 1, Human/physiology
- Herpesvirus 2, Human/drug effects
- Herpesvirus 2, Human/genetics
- Herpesvirus 2, Human/metabolism
- Herpesvirus 2, Human/physiology
- Hot Temperature
- Houttuynia/chemistry
- Humans
- NF-kappa B/metabolism
- Plant Extracts/isolation & purification
- Plant Extracts/pharmacology
- Viral Envelope Proteins/metabolism
- Virion/drug effects
- Virion/physiology
- Virus Internalization/drug effects
- Virus Replication/drug effects
- Water/chemistry
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Affiliation(s)
- Pei-Yun Hung
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Bing-Ching Ho
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
- NTU Center for Genomic Medicine, National Taiwan University College of Medicine, Taipei 100, Taiwan
| | - Szu-Yuan Lee
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Chuan-Liang Kao
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Shoei-Sheng Lee
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Chun-Nan Lee
- Department of Clinical Laboratory Sciences and Medical Biotechnology College of Medicine, National Taiwan University, Taipei 100, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
- * E-mail:
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13
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Giuffrè AM, Capocasale M. Policosanol in Tomato ( Solanum lycopersicum L.) Seed Oil: the Effect of Cultivar. J Oleo Sci 2015; 64:625-31. [DOI: 10.5650/jos.ess15002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Angelo Maria Giuffrè
- Università degli Studi “Mediterranea” di Reggio Calabria (Italy). Dipartimento AGRARIA
| | - Marco Capocasale
- Università degli Studi “Mediterranea” di Reggio Calabria (Italy). Dipartimento AGRARIA
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14
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da Rosa Guimarães T, Quiroz CG, Rigotto C, de Oliveira SQ, Rojo de Almeida MT, Bianco ÉM, Moritz MIG, Carraro JL, Palermo JA, Cabrera G, Schenkel EP, Reginatto FH, Oliveira Simões CM. Anti HSV-1 activity of halistanol sulfate and halistanol sulfate C isolated from Brazilian marine sponge Petromica citrina (Demospongiae). Mar Drugs 2013; 11:4176-92. [PMID: 24172213 PMCID: PMC3853722 DOI: 10.3390/md11114176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 09/18/2013] [Accepted: 09/30/2013] [Indexed: 01/24/2023] Open
Abstract
The n-butanol fraction (BF) obtained from the crude extract of the marine sponge Petromica citrina, the halistanol-enriched fraction (TSH fraction), and the isolated compounds halistanol sulfate (1) and halistanol sulfate C (2), were evaluated for their inhibitory effects on the replication of the Herpes Simplex Virus type 1 (HSV-1, KOS strain) by the viral plaque number reduction assay. The TSH fraction was the most effective against HSV-1 replication (SI = 15.33), whereas compounds 1 (SI = 2.46) and 2 (SI = 1.95) were less active. The most active fraction and these compounds were also assayed to determine the viral multiplication step(s) upon which they act as well as their potential synergistic effects. The anti-HSV-1 activity detected was mediated by the inhibition of virus attachment and by the penetration into Vero cells, the virucidal effect on virus particles, and by the impairment in levels of ICP27 and gD proteins of HSV-1. In summary, these results suggest that the anti-HSV-1 activity of TSH fraction detected is possibly related to the synergic effects of compounds 1 and 2.
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Affiliation(s)
- Tatiana da Rosa Guimarães
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Carlos Guillermo Quiroz
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (C.G.Q.); (C.R.B.)
| | - Caroline Rigotto
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (C.G.Q.); (C.R.B.)
| | - Simone Quintana de Oliveira
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Maria Tereza Rojo de Almeida
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Éverson Miguel Bianco
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Maria Izabel Goulart Moritz
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - João Luís Carraro
- Laboratory of Porifera, National Museum, Universidade Federal do Rio de Janeiro, Rio de Janeiro 20940-040, RJ, Brazil; E-Mail:
| | - Jorge Alejandro Palermo
- UMYMFOR—Department of Organic Chemistry, FCEN—University of Buenos Aires, Buenos Aires C1428EGA, Argentina; E-Mails: (J.A.P.); (G.C.)
| | - Gabriela Cabrera
- UMYMFOR—Department of Organic Chemistry, FCEN—University of Buenos Aires, Buenos Aires C1428EGA, Argentina; E-Mails: (J.A.P.); (G.C.)
| | - Eloir Paulo Schenkel
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Flávio Henrique Reginatto
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
| | - Cláudia Maria Oliveira Simões
- Laboratory of Natural Products, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (T.R.G.); (S.Q.O.); (M.T.R.A.); (E.M.B.); (M.I.G.M.); (E.P.S.); (F.H.R.)
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil; E-Mails: (C.G.Q.); (C.R.B.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-48-3721-5207; Fax: +55-48-3721-9350
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15
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Al-Dujaili LJ, Clerkin PP, Clement C, McFerrin HE, Bhattacharjee PS, Varnell ED, Kaufman HE, Hill JM. Ocular herpes simplex virus: how are latency, reactivation, recurrent disease and therapy interrelated? Future Microbiol 2011; 6:877-907. [PMID: 21861620 DOI: 10.2217/fmb.11.73] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Most humans are infected with herpes simplex virus (HSV) type 1 in early childhood and remain latently infected throughout life. While most individuals have mild or no symptoms, some will develop destructive HSV keratitis. Ocular infection with HSV-1 and its associated sequelae account for the majority of corneal blindness in industrialized nations. Neuronal latency in the peripheral ganglia is established when transcription of the viral genome is repressed (silenced) except for the latency-associated transcripts and microRNAs. The functions of latency-associated transcripts have been investigated since 1987. Roles have been suggested relating to reactivation, establishment of latency, neuronal protection, antiapoptosis, apoptosis, virulence and asymptomatic shedding. Here, we review HSV-1 latent infections, reactivation, recurrent disease and antiviral therapies for the ocular HSV diseases.
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Affiliation(s)
- Lena J Al-Dujaili
- Department of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, USA
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16
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Cardozo FTGDS, Camelini CM, Mascarello A, Rossi MJ, Nunes RJ, Barardi CRM, de Mendonça MM, Simões CMO. Antiherpetic activity of a sulfated polysaccharide from Agaricus brasiliensis mycelia. Antiviral Res 2011; 92:108-14. [PMID: 21787804 DOI: 10.1016/j.antiviral.2011.07.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Revised: 05/18/2011] [Accepted: 07/08/2011] [Indexed: 10/17/2022]
Abstract
Sulfated polysaccharides are good candidates for drug discovery in the treatment of herpetic infections. Agaricus brasiliensis (syn A. subrufescens, A. blazei) is a Basidiomycete fungus native to the Atlantic forest region of Southeastern Brazil. Herein we report the chemical modification of a polysaccharide extracted from A. brasiliensis mycelia to obtain its sulfated derivative (MI-S), which presented a promising inhibitory activity against HSV-1 [KOS and 29R (acyclovir-resistant) strains] and HSV-2 strain 333, with selectivity indices (SI = CC50/IC50) higher than 439, 208, and 562, respectively. The mechanisms underlying this inhibitory activity were scrutinized by plaque assay with different methodological strategies. MI-S had no virucidal effects, but inhibited HSV-1 and HSV-2 attachment, penetration, and cell-to-cell spread, as well as reducing the expression of HSV-1 ICP27, UL42, gB, and gD proteins. MI-S also presented synergistic antiviral effect with acyclovir. These results suggest that MI-S presents multiple modes of anti-HSV action.
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17
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Hobden JA, Kumar M, Kaufman HE, Clement C, Varnell ED, Bhattacharjee PS, Hill JM. In vitro synergism of trifluorothymidine and ganciclovir against HSV-1. Invest Ophthalmol Vis Sci 2011; 52:830-3. [PMID: 20861476 DOI: 10.1167/iovs.10-5671] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To determine whether trifluorothymidine (TFT) and ganciclovir (GCV) are synergistic against herpes simplex virus type 1 (HSV-1). METHODS TFT and GCV activity against 12 strains of HSV-1 (including an acyclovir-resistant strain) was measured by plaque-forming unit (PFU) inhibition. Cellular toxicity was assessed with an MTT dye reduction assay. Synergism was determined by calculating fractional inhibitory concentration (FIC indices) based on PFU reduction. RESULTS Concentrations of TFT resulting in 50% inhibition of PFUs (IC(50)) of acyclovir-susceptible HSV-1 strains ranged from 3.07 ± 0.36 to 12.52 ± 0.61 μM. GCV IC(50) values ranged from 0.40 ± 0.02 to 1.59 ± 0.14 μM. IC(50) values of TFT and GCV against the acyclovir-resistant strain were 15.40 ± 3.17 and 93.00 ± 9.64 μM, respectively. Concentrations of TFT or GCV resulting in 50% cell cytotoxicity (CC(50)) were 0.99 ± 0.01 and 92.91 ± 8.92 μM, respectively. TFT and GCV combined (10:1) were 10 times more potent against all acyclovir-susceptible HSV-1 strains. For 8 of 12 HSV-1 strains, the IC(50) of TFT and GCV combined was lower than the CC(50) of either drug. For acyclovir-susceptible HSV-1 strains, TFT and GCV combined generated a FIC index of <0.5, suggesting strong synergism between the two drugs. The FIC value for TFT and GCV combined against the acyclovir-resistant HSV-1 strain was 0.84, indicating nonantagonism. CONCLUSIONS TFT and GCV are synergistic against acyclovir-susceptible HSV-1 at concentrations significantly less toxic than if each antiviral were used as a sole agent.
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Affiliation(s)
- Jeffery A Hobden
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
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18
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Cherif AO, Ben Messaouda M, Kaabi B, Boukhchina S, Pepe C, Kallel H. Comparison of the concentrations of long-chain alcohols (policosanol) in three Tunisian peanut varieties (Arachis hypogaea L.). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:12143-12148. [PMID: 21062016 DOI: 10.1021/jf1030345] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Policosanol (PC) is a mixture of high molecular weight aliphatic primary alcohols. Literature about the contents and compositions of PC derived from peanut varieties is scarce. Total PC composition and content in whole peanut grain samples from three varieties of peanut (two cultivars, AraC and AraT, and a wild one, AraA) were identified using a gas chromatograph system coupled with a mass spectrophotometer. The results show that, qualitatively, 21 components of peanut aliphatic alcohols were identified (C14-C30). Besides (C18=), the results exhibited a previously unreported mixture of PC compositions in the peanuts: the unsaturated PC (UPC), which are (C20=), (C21=), (C22=), and (C24=). The main components of total PC in Tunisian peanut kernels are docosanol (C22), (Z)-octadec-9-en-1-ol (C18=), hexadecanol (C16), and octadecanol (C18). Quantitatively, the total PC content of the whole peanut samples varied from 11.18 to 54.19 mg/100 g of oil and was higher than those of beeswax and whole sugar cane, which are sources of dietary supplements containing policosanol.
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Affiliation(s)
- Aicha O Cherif
- Laboratoire de Biochimie, des Lipides et des Protéines, Département de Biologie, Faculté des Sciences de Tunis, Tunis, 2092 El Manar, Tunisia
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Gebhardt BM, Focher F, Eberle R, Manikowski A, Wright GE. Effect of combinations of antiviral drugs on herpes simplex encephalitis. DRUG DESIGN DEVELOPMENT AND THERAPY 2009; 3:289-94. [PMID: 20054446 PMCID: PMC2802127 DOI: 10.2147/dddt.s8133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
2-Phenylamino-6-oxo-9-(4-hydroxybutyl)purine (HBPG) is a thymidine kinase inhibitor that prevents encephalitic death in mice caused by herpes simplex virus (HSV) types 1 and 2, although its potency is somewhat less than that of acyclovir (ACV). The present study was undertaken to determine the effect of combinations of HBPG and either ACV, phosphonoformate (PFA), or cidofovir (CDF) against HSV encephalitis. BALB/c mice were given ocular infections with HSV-1 or HSV-2, and treated twice daily intraperitoneally for five days with HBPG, alone or in combination with ACV, PFA, or CDF. Animals were observed daily for up to 30 days, and the day of death of each was recorded. All of the combinations showed additivity, and the combination of HBPG + ACV appeared to be synergistic, ie, protected more mice against HSV-1 encephalitis compared with each drug given alone. Delay of treatment with HBPG for up to two days was still effective in preventing HSV-2 encephalitis. The combination of the thymidine kinase inhibitor HBPG and the antiherpes drug ACV may have synergistic activity against HSV encephalitis. The development of a potent and safe combination therapy for the prevention and/or treatment of HSV infection of the central nervous system can improve the outcome of this infection in humans.
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Affiliation(s)
- Bryan M Gebhardt
- LSU Eye Center, Department of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, LA, USA
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Harrabi S, Boukhchina S, Mayer PM, Kallel H. Policosanol distribution and accumulation in developing corn kernels. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.12.098] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Recurrent herpes labialis is a painful and potentially disfiguring infection affecting an estimated 40 million people in the US alone. The majority of recurrences are caused by herpes simplex virus type 1. Various oral and topical formulations of nucleoside analogues have demonstrated efficacy for this indication. Over-the-counter treatments are palliative in nature and do not reduce time to healing. Docosanol is a compound with a unique mechanism of action involving viral fusion inhibition. In randomised, clinical trials, a 10% docosanol cream formulation, initiated within 12 h of symptoms onset, demonstrated efficacy in reduction of time-to-healing compared with a polyethylene glycol control. Despite its potential to be a mild irritant, this novel antiviral was well-tolerated in clinical trials. Docosanol is the first topical antiviral approved for over-the-counter use in recurrent herpes labialis.
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Affiliation(s)
- Daniel T Leung
- Wake Forest University School of Medicine, Box 2642, Medical Center Blvd, Winston Salem, NC 27157, USA.
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Terzano C, Petroianni A, Ricci A. Herpes simplex pneumonia: Combination therapy with oral acyclovir and aerosolized ribavirin in an immunocompetent patient. CURRENT THERAPEUTIC RESEARCH 2004; 65:90-6. [PMID: 24936107 PMCID: PMC4052960 DOI: 10.1016/s0011-393x(04)90008-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2003] [Indexed: 11/24/2022]
Abstract
BACKGROUND Herpes simplex viruses (HSVs) are known to cause respiratory tract infections in immunocompromised hosts and, in rare instances, in immunocompetent hosts. Numerous in vitro and in vivo studies have shown that aerosolized administration of ribavirin can potently and selectively inhibit viral replication in pulmonary disease, thereby increasing the effectiveness of acyclovir in HSV. OBJECTIVE In this case study, we reported on a 46-year-old immunocompetent woman with HSV type 1 pneumonia with bilateral pulmonary infiltrates but without mucocutaneous lesions. METHODS The diagnosis was confirmed using cytology, viral culture, and serology. Because of the persistence of fever and dyspnea, we chose an antiviral therapy. The patient received oral acyclovir and aerosolized ribavirin to improve the antiviral effectiveness of the acyclovir and to reduce the symptoms and the time to resolution of the pulmonary disease. RESULTS After 3 days of therapy, dyspnea and fever decreased and hypoxemia improved. After 2 weeks, computed tomography showed complete resolution of pulmonary abnormalities. The patient did not report any adverse effects. CONCLUSIONS In our case study, we demonstrated that therapy with a combination of aerosolized ribavirin and oral acyclovir may be useful to reduce the severity of viral infection, the adverse effects, and the days of hospitalization. To our knowledge, this is the first report in the literature of the synergistic effects of the combination of aerosolized ribavirin and oral acyclovir in the treatment of an immunocompetent patient with HSV pneumonia.
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Affiliation(s)
- Claudio Terzano
- Respiratory Diseases Unit, Department of Cardiovascular and Respiratory Sciences, Fondazione E. Lorillard Spencer Cenci, University “La Sapienza,” Rome, Italy
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