• Journal of Ginseng Research
• /
• 제37권2호
• /
• pp.210-218
• /
• 2013

Numerous studies have suggested that Korean red ginseng (KRG) extract has various immune modulatory activities both in vivo and in vitro. In this study, we used a mouse model to examine the effects of orally administered KRG extract on immunity against herpes simplex virus (HSV). Balb/c mice were administered with 100, 200, and 400 mg/kg oral doses of KRG extract for 10 d and then vaginally infected with HSV. We found that KRG extract rendered recipients more resistant against HSV vaginal infection and further systemic infection, including decreased clinical severity, increased survival rate, and accelerated viral clearance. Such results appeared to be mediated by increased vaginal IFN-${\gamma}$ secretion. Moreover, increased mRNA expression of IFN-${\gamma}$, granzyme B, and Fas-ligand was identified in the iliac lymph node and vaginal tracts of KRG extract treated groups (200 and 400 mg/kg). These results suggest that the activities of local natural killer cells were promoted by KRG extract consumption and that KRG may be an attractive immune stimulator for helping hosts overcome HSV infection.

• Biomolecules & Therapeutics
• /
• 제1권1호
• /
• pp.98-102
• /
• 1993

The therapeutic effectiveness of adenine arabinoside(tora-A) and its conjugate of prednisone(BR-8702-AP) was compared in Herpes simplex Virus Type 1 (HSV-1) infected BALB/C mice. The BALB/C mouse was infected with HSV-1(700 PFU/mouse) intranasally. Among mice infected intranasally with virus, a mortality rate of 100% was observed. On the oral administration of non-toxic doses of ara-A or BR-8702-AP(125 mg /kg/day) for 5 consecutive days 2 hours after virus infection, the tora-A was highly effective in reducing mortality to 0% (P<0.001) and BR-8702-AP was also effective in reducing mortality to 15% (P<0.01). In this model infection, the virus was first replicated in the lung and transmitted to the brain. Both arts-A and BR-8702-AP did not inhibit the viral replication in the lung, but they inhibited the viral transmission to the brain. However, the BR-8702-AP was less effective than the aria-A to prevent transmission of virus to brain. Therefore, the reduced mortality due to tora-A or BR-8702-AP therapy was associated with inhibition of viral transmission to brain.

• Journal of Microbiology and Biotechnology
• /
• 제11권2호
• /
• pp.173-178
• /
• 2001

A monoclonal antibody (mAb) to the glucoprotein D (gD) of Herpes simplex virus type 2 (HSV-2) was successfully generated by hybridoma technology and characterized. The mAb, SKS2v, recognized a gD antigen with an apparent molecular mass of 60kDa in a Western blot analysis. The isotype was determined by a sandwich ELISA to be IgG2a. HSV-2 exhibited major antigens of 36, 43, 46, 47, 60, 69, 81, 96, 109, 112, 159, and 227 kDa among 25 protein profiles in SDS-PAGE, and among these antigens, those of 60, 112, 125, and 227 kDa were immunodominant in a Western blot analysis using antisera, thereby indicating that they play a role in inducing neutralizing antibodies in HSV-2 infection. When reacted with Vero cells infected with HSV-1 and HSV-2 SKSv2 showed a reactivity to the surface of the infected cells, and a gD antigen of 60 kDa appeared to be expressed in both types of HSV.

• 대한임상약리학회:학술대회논문집
• /
• 대한임상약리학회 1993년도 정기총회 및 추계학술대회
• /
• pp.46-46
• /
• 1993

• Journal of Ginseng Research
• /
• 제48권4호
• /
• pp.384-394
• /
• 2024

Background: Herpes simplex virus type 1 (HSV-1), known to latently infect the host's trigeminal ganglion, can lead to severe herpes encephalitis or asymptomatic infection, potentially contributing to neurodegenerative diseases like Alzheimer's. The virus generates reactive oxygen species (ROS) that significantly impact viral replication and induce chronic inflammation through NF-κB activation. Nuclear factor E2-related factor 2 (Nrf2), an oxidative stress regulator, can prevent and treat HSV-1 infection by activating the passive defense response in the early stages of infection. Methods and results: Our study investigated the antiviral effects of ginsenoside Rg5, an Nrf2 activator, on HSV-1 replication and several host cell signaling pathways. We found that HSV-1 infection inhibited Nrf2 activity in host cells, induced ROS/NF-κB signaling, and triggered inflammatory cytokines. However, treatment with ginsenoside Rg5 inhibited ROS/NF-κB signaling and reduced inflammatory cytokines through NRF2 induction. Interestingly, the Nrf2 inhibitor ML385 suppressed the expression of NAD(P)H quinone oxidoreductase 1(NQO1) and enhanced the expression of KEAP1 in HSV-1 infected cells. This led to the reversal of VP16 expression inhibition, a protein factor associated with HSV-1 infection, thereby promoting HSV-1 replication. Conclusion: These findings suggest for the first time that ginsenoside Rg5 may serve as an antiviral against HSV-1 infection and could be a novel therapeutic agent for HSV-1-induced neuroinflammation.

• Journal of Microbiology and Biotechnology
• /
• 제28권6호
• /
• pp.849-859
• /
• 2018

Herpes simplex virus type 2 (HSV-2) infection has been a public health concern worldwide. It is the leading cause of genital herpes and a contributing factor to cervical cancer and human immunodeficiency virus (HIV) infection. No vaccine is available yet for the treatment of HSV-2 infection, and routinely used synthetic nucleoside analogs have led to the emergence of drug resistance. The small molecule $Retro-2^{cycl}$ has been reported to be active against several pathogens by acting on intracellular vesicle transport, which also participates in the HSV-2 lifecycle. Here, we showed that Retro-2.1, which is an optimized, more potent derivative of $Retro-2^{cycl}$, could inhibit HSV-2 infection, with 50% inhibitory concentrations of $5.58{\mu}M$ and $6.35{\mu}M$ in cytopathic effect inhibition and plaque reduction assays, respectively. The cytotoxicity of Retro-2.1 was relatively low, with a 50% cytotoxicity concentration of $116.5{\mu}M$. We also preliminarily identified that Retro-2.1 exerted the antiviral effect against HSV-2 by a dual mechanism of action on virus entry and late stages of infection. Therefore, our study for the first time demonstrated Retro-2.1 as an effective antiviral agent against HSV-2 in vitro with targets distinct from those of nucleoside analogs.

• 대한세포병리학회지
• /
• 제1권1호
• /
• pp.74-84
• /
• 1990

Herpes simplex virus type 1 and 2(HSV-1, HSV-2) are the ubiquitous human pathogens responsible for a variety of afflictions. HSV-2 is one of the viruses that were suspected of promoting carcinogenesis in the uterine cervix. Certainly, there is a need for the more sensitive and accurate laboratory techniques for HSV detection. We examined total 80 cases of smears including 17 Tzanck smears of skin and 63 cases of Papanicolaou smears from total 77 patients with clinical impression of herpetic infections, from September, 1985 through August, 1989. Immunohistochemical typings for HSV-1 and HSV-2 were performed together with routine cytologic findings and compared. The results are as follows : 1) Patients were 9 males and 33 females, and age distribution was between 5 and 71 years. 2) Subjective symptoms such as ulceration, vesicle, vaginal discharge, pruritus, and pain were complained in 36 patients and 38 cases were genital herpes. Recurrence was noted in 11 cases. 3) Positive results were obtained in 42 among 80 cases. 4) Both routine cytology and immunohistochemical staining were positive in 13 cases and in 24 cases only immunohistochemical staining were positive. 5 cases were positive only in routine cytologic smears. 5) The cases that immunocytochemical stain had been performed were 37 cases, which were all positive in type 2. Among the above 37 cases, type 1 also were positive in 5 cases. The results show that the immunoperoxidase technique is one of the rapid and reliable method to confirm the herpetic infection when suspected and that it is particularly useful when the Papanicolaou smear findings are equivocal.

• IMMUNE NETWORK
• /
• 제15권2호
• /
• pp.91-99
• /
• 2015

Herpes simplex virus (HSV) is a common causative agent of genital ulceration and can lead to subsequent neurological disease in some cases. Here, using a genital infection model, we tested the efficacy of vinegar-processed flos of Daphne genkwa (vp-genkwa) to modulate vaginal inflammation caused by HSV-1 infection. Our data revealed that treatment with optimal doses of vp-genkwa after, but not before, HSV-1 infection provided enhanced resistance against HSV-1 infection, as corroborated by reduced mortality and clinical signs. Consistent with these results, treatment with vp-genkwa after HSV-1 infection reduced viral replication in the vaginal tract. Furthermore, somewhat intriguingly, treatment of vp-genkwa after HSV-1 infection increased the frequency and absolute number of $CD3^-NK1.1^+NKp46^+$ natural killer (NK) cells producing interferon (IFN)-${\gamma}$ and granyzme B, which indicates that vp-genkwa treatment induces the activation of NK cells. Supportively, secreted IFN-${\gamma}$ was detected at an increased level in vaginal lavages of mice treated with vp-genkwa after HSV-1 infection. These results indicate that enhanced resistance to HSV-1 infection by treatment with vp-genkwa is associated with NK cell activation. Therefore, our data provide a valuable insight into the use of vp-genkwa to control clinical severity in HSV infection through NK cell activation.

• Pediatric Infection and Vaccine
• /
• 제26권3호
• /
• pp.194-198
• /
• 2019

Streptococcus dysgalactiae subsp. dysgalactiae (SDSD)에 의한 사람 감염병을 보고한 사례가 많지 않으며, S. dysgalactiae subsp. equisimilis (SDSE)에 의한 감염병이 대부분이다. 저자들은 생후 22일 된 신생아에서 SDSD와 단순포진 바이러스의 동시감염에 의한 수막염을 경험하였으며, 뇌경색 및 경막하삼출 등이 합병되어 총 4주간의 항균제를 투여하고 치료를 완료하였다. 본 증례의 원인 균주가 소아의 침습감염의 원인으로 알려진 바가 없으나, 오염된 동물을 통한 감염 뿐 아니라, 돌발 감염의 원인균이 될 수 있을 것으로 생각되어 1예를 보고하는 바이다.

• 한방안이비인후피부과학회지
• /
• 제22권2호
• /
• pp.290-297
• /
• 2009

Eczema herpeticum is a widespread Herpes simplex virus(HSV) infection, which usually develops in patients with atopic dermatitis, because prutitis in patients with atopic dermatits leads them to scratch their bodies, it cause the dissemination of Herpes simplex virus. This study carried out to observe the progress of Eczema herpeticum and find effective remedy. The pastient was taken Herb-medicine with acupunture, cupping theraphy, aroma theraphy, and etc. After the treatment the grade of VAS was decressed and clinical symptoms were gradually disappeared. Those results suggest that herbal treatment was effective to Eczema herpeticum.