• Title/Summary/Keyword: Herpes simplex virus infection

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Efficacy of Acyclovir on Virus Replication in Infected Tissues and Virus Reactivation from Explanted Tissues in Mouse Encephalitis Model of Herpes Simplex Virus Type 1 (Herpes Simplex Virus Type 1 마우스 뇌염모델에서의 조직내 바이러스 증식 및 재활성에 미치는 Acyclovir의 약효)

  • Lee, Chong-Kyo;Kim, Jee-Hyun;Bae, Pan-Kee;Pi, Mi-Kyung;Kim, Hae-Soo
    • The Journal of Korean Society of Virology
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    • v.29 no.3
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    • pp.165-174
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    • 1999
  • To investigate viral pathogenesis and in vivo efficacy of acyclovir (ACV) in mouse HSV-1 encephalitis models, female BALB/c mice aged 5 weeks were inoculated with strain F either intranasally (IN) or intracerebrally (IC). ACV-treatment by intraperitomeal injection with 0, 5, 10 and 25 mg/kg b.i.d. for 6 days was commenced 1 h after infection. Body weight and signs of clinical disease were noted daily up to 2 weeks. $ED_{50}$ of ACV in IN infection was <5 mg/kg and 14.1 mg/kg in IC infection. Tissues of central nervous system were collected from 2 mice per group everyday up to 5 day p.i. and the virus titers were measured. In IN infection model, high titers in eyes and trigeminal nerves were observed. ACV-treatment showed significant reduction of the titers in all the isolated. In IC infection model, cerebrum, cerebellum and brain stem showed high virus titers. ACV-treatment showed less significant reduction of virus titers than that in IN infection model. Reactivation of explanted trigeminal nerves from mice 30 day p.i. was monitored. In all of ACV treated mice reactivation was observed, i.e. even the highest dose of ACV did not inhibit the establishment of viral latency.

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The Production and Characterization of a Monoclonal Antibody to Herpes simplex Virus Type 2 (Herpes simplex 2형 바이러스에 대한 단클론항체 생산과 항원 분석)

  • 최경은;이형환;조명환
    • Korean Journal of Microbiology
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    • v.33 no.2
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    • pp.97-104
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    • 1997
  • Herpes simpex virus type 2 (HSV-2) infects the genital and oral mucosae of human and other animals. HSV-2 infection is a widespread health problem causing various clinical syndromes including oral, genital, and ocular lesions, viral encephalitis, and recurrent diseases. Hybridorna cell lines secreting a monoclonal antibody (mAb) against the HSV-2 were produced by fusing spleen cells of HSV-2-immunized mice with Sp2/0-AgI4 myeloma cells. One hybridoma cell line was established and its monoclonal C-2, IgM, recognized the antigens of 134, 86, and 43 kDa in western blot analysis. In SDS-P AGE analysis of HSV -2 antigens, 25 bands were separated between 3D kDa and 159 kDa. In indirect immunofluorescent assay, mAbs exhibited binding to the virus antigen expressed on Vero cell infected with HSV-2.

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A Case of Herpetic Whitlow of Toe Misdiagnosed as Bacterial Infection: A Case Report (세균성 감염으로 오인된 발가락의 헤르페스 손끝염: 증례 보고)

  • Ye Rang Jeong;Young Sik Yoon
    • Journal of Korean Foot and Ankle Society
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    • v.28 no.2
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    • pp.68-70
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    • 2024
  • Finger infections are a common problem often caused by viruses, bacteria, or fungi. Similarly, toe infections can present with similar clinical symptoms. Prompt identification of the cause of an infection is crucial for preventing disease progression to a state necessitating immediate and appropriate medical or surgical intervention. Herpetic whitlow is characterized by erythema and painful, non-purulent vesicles and typically results from a herpes simplex virus type 1 or 2 finger infections. However, while herpes whitlow of a finger is common, cases involving a toe are rare. Consequently, a lack of experience of herpetic whitlow of the toe could lead to a misdiagnosis as a bacterial infection and potentially result in unnecessary surgical treatment. Herein, we present a case of herpetic whitlow affecting a great toe that was initially misdiagnosed as a bacterial infection and subsequently treated surgically.

Immunoelectron Microscopic Localization and Analysis of Herpes simplex Virus Type 2 Antigens (전자현미경 기법을 이용한 Herpes simplex 2형 바이러스 항원의 면역학적 분석)

  • 김천식;오명환
    • Korean Journal of Microbiology
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    • v.40 no.1
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    • pp.23-28
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    • 2004
  • Antigenic analysis of Herpes simplex type 2 virus was performed and its major antigen was localized using an immunoelectron microscopy. Antigens of 32, 43, 59 and 69 kDa were constantly expressed during the course of infection for 48 hr in the infected Vero cell. An antigen of 51 kDa was turned out to be the major one in inducing a immune response in Western-blot analysis. The 51 kDa antigen was localized on the surface of HSV-2 by immunoelectron microscopy using colloidal golds and anti-HSV 2 polyc1onal antibody. Immunofluorescence assay indicated that viral antigens were found throughout the infected cell and, especially, on the surface of the cell.

Recurrent Herpes Simplex Virus Type-2 Meningitis in an Adolescent Girl (청소년기 여성에서 제2형 단순포진바이러스에 의한 재발성 뇌수막염)

  • Hwang, YunSu;Kim, YoungSeo;Park, HyunYoung;Park, HyungJong;Cho, JiHyun;Park, DoSim;Cho, KwangHo
    • Annals of Clinical Neurophysiology
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    • v.16 no.2
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    • pp.77-80
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    • 2014
  • Herpes simplex virus type 2 (HSV2) meningitis primarily develops during or following a primary genital HSV2 infection that was acquired from sexual contact or through the birth canal during delivery from mother. We describe a 15 year old virgin without history of previous herpes simplex infection who developed 2 episodes of HSV2 meningitis. Although recurrent meningitis due to HSV is primarily seen in young or sexually active adults. HSV2 meningitis should be in the differential diagnosis of recurrent meningitis in adolescent patients.

Prophylactic and Therapeutic Modulation of Innate and Adaptive Immunity Against Mucosal Infection of Herpes Simplex Virus

  • Uyangaa, Erdenebileg;Patil, Ajit Mahadev;Eo, Seong Kug
    • IMMUNE NETWORK
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    • v.14 no.4
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    • pp.187-200
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    • 2014
  • Herpes simplex virus types 1 and 2 (HSV-1 and HSV-2) are the most common cause of genital ulceration in humans worldwide. Typically, HSV-1 and 2 infections via mucosal route result in a lifelong latent infection after peripheral replication in mucosal tissues, thereby providing potential transmission to neighbor hosts in response to reactivation. To break the transmission cycle, immunoprophylactics and therapeutic strategies must be focused on prevention of infection or reduction of infectivity at mucosal sites. Currently, our understanding of the immune responses against mucosal infection of HSV remains intricate and involves a balance between innate signaling pathways and the adaptive immune responses. Numerous studies have demonstrated that HSV mucosal infection induces type I interferons (IFN) via recognition of Toll-like receptors (TLRs) and activates multiple immune cell populations, including NK cells, conventional dendritic cells (DCs), and plasmacytoid DCs. This innate immune response is required not only for the early control of viral replication at mucosal sites, but also for establishing adaptive immune responses against HSV antigens. Although the contribution of humoral immune response is controversial, $CD4^+$ Th1 T cells producing IFN-${\gamma}$ are believed to play an important role in eradicating virus from the hosts. In addition, the recent experimental successes of immunoprophylactic and therapeutic compounds that enhance resistance and/or reduce viral burden at mucosal sites have accumulated. This review focuses on attempts to modulate innate and adaptive immunity against HSV mucosal infection for the development of prophylactic and therapeutic strategies. Notably, cells involved in innate immune regulations appear to shape adaptive immune responses. Thus, we summarized the current evidence of various immune mediators in response to mucosal HSV infection, focusing on the importance of innate immune responses.

Study or The Genetic Characteration of Herpes Simplex Virus (Herpes simplex 바이러스의 유전학적 특성에 관한 연구)

  • Kang, Bong-Joo;Choi, Whan-Soo;Choi, Sun-Mi;Shin, Hyun-Kyoo;Cho, Dong-Wuk;Park, Kap-Joo
    • Korean Journal of Oriental Medicine
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    • v.1 no.1
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    • pp.477-493
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    • 1995
  • In order to facilitate the molecular characterization of the Herpes simplex Virus types 1 and types 2 genome DNAs, a gene library of cloned restriction frtgments have been produced. The Vero cells were infected with HSV-1 and HSV-2. 48 hours after infection, the infected cells Ivere Iysed, and multinucleated giant cells were observed approximately at seventy-two hours postinfection. The multiplication of HSV-1 and HSV-2 was observed in Vero cells using electromicroscopy. The nucleocapsids in nuclei were obseryed, and the assembled virions were budded out through the vacuole, and the virions were released from the cells. HSV-1 and HSV-2 was analyzed by digestion of their genome DANs with restriction ensymes. HSV-1 and HSV-2 genome DNAs were digested with BarnHI, Bgfl respectively. The BarnHI rlestriction fragments of HSV-1 and HSV-2 genome DNAs were twenty-seven fragments and thair molecular sizes were ranging $0.70{\sim}15.08$, $4.4{\sim}31.0$ tilobases. The BglII restriction fragments of HSV-1 and HSV-2 genome DNAs were sixteen, eighteen fragments and thair molecular sizes were ranging $4.8{\sim}30.0$, $1.2{\sim}25.0$ kilobases. And then BglII restriction frgments were cloned in Escherichia coli(E.coil) using the plasmid vector pBacPAK9.

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Glutamine and Leucine Provide Enhanced Protective Immunity Against Mucosal Infection with Herpes Simplex Virus Type 1

  • Uyangaa, Erdenebileg;Lee, Hern-Ku;Eo, Seong Kug
    • IMMUNE NETWORK
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    • v.12 no.5
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    • pp.196-206
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    • 2012
  • Besides their role as building blocks of protein, there are growing evidences that some amino acids have roles in regulating key metabolic pathways that are necessary for maintenance, growth, reproduction, and immunity. Here, we evaluated the modulatory functions of several amino acids in protective immunity against mucosal infection of herpes simplex virus type 1 (HSV-1). We found that glutamine (Gln) and leucine (Leu) showed enhanced protective immunity to HSV-1 mucosal infection when two administration of Gln and single administration of Leu per day, but not when administered in combinations. Ameliorated clinical signs of HSV-1 challenged mice by the intraperitoneal administration of Gln and Leu were closely associated with viral burden and IFN-${\gamma}$ production in the vaginal tract at 2 and 4 days post-infection. In addition, the enhanced production of vaginal IFN-${\gamma}$ appeared to be caused by NK and HSV-1 antigen-specific Th1-type CD4+ T cells recruited into vaginal tract of mice treated with Gln and Leu, which indicates that IFN-${\gamma}$, produced by NK and Th1-type CD4+ T cells, may be critical to control the outcome of diseases caused by HSV-1 mucosal infection. Collectively, our results indicate that intraperitoneal administration of Gln and Leu following HSV-1 mucosal infection could provide beneficial effects for the modulation of protective immunity, but dosage and frequency of administration should be carefully considered, because higher frequency and overdose of Gln and Leu, or their combined treatment, showed detrimental effects to protective immunity.

A Case of Herpetic Whitlow with Bacterial Superinfection (세균이 중복감염된 Herpetic Whitlow 1례)

  • Chung, Ju-Young;Kim, Sang-Woo
    • Clinical and Experimental Pediatrics
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    • v.46 no.9
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    • pp.918-920
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    • 2003
  • Herpes simplex virus infection of the hand in children occurs after auto-inoculation from herpetic gingivostomatitis or herpes labialis. Herpetic whitlow should be suspected based on clinical signs. Diagnosis can be made by PCR or virus culture. Many misdiagnosed cases suggests that this disease is not sufficiently known. Surgical interventions may be harmful and should be avoided. We report a case of herpetic whitlow with bacterial superinfection in a three-year-old girl.

Prevalence of Human Papillomavirus and Herpes Simplex Virus Type 2 Infection in Korean Commercial Sex Workers

  • Yun, Hae-Sun;Park, Jeong-Joo;Choi, In-Kyung;Kee, Mee-Kyung;Choi, Byeong-Sun;Kim, Sung-Soon
    • Journal of Microbiology and Biotechnology
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    • v.18 no.2
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    • pp.350-354
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    • 2008
  • In order to investigate the prevalence of sexually transmitted viruses such as human papillomavirus (HPV) and herpes simplex virus (HSV) in Korean commercial sex workers (CSWs), we selected 188 CSWs (age range 20-44 years, median age 24 years) who regularly visited one public health center in Seoul, Korea. HPV genotypes were analyzed by using a HPV DNA Chip, and an enzyme-linked immunosorbent assay (ELISA) was used to detect type-specific IgG against HSV2 antibody identifying seropositivity for HSV2 infection. Polymerase chain reaction (PCR) was performed with specific primers to detect HPV and HSV1/2 in cervical swabs from the CSWs. The prevalence of HPV infection was 83.5% in 188 cervical swab specimens and the main high-risk HPV genotypes were HPV16, 18, 56, and 58. The principal low-risk HPV genotypes were HPV6 and 11. The prevalence of HSV1/2 DNA was 13.8% and HSV2 seroprevalence was 86.2%. These results suggest that high frequencies of HPV and HSV2 infection might contribute to the rapid spread of STD viruses in CSWs in Korea. Additionally, an understanding of why high-risk HPV genotypes are so prevalent could provide guidelines for prophylactic vaccine development in Korea.